Author profile OpenAlex ID
Ratu Ilma
- Articles in Melola
- 9
- Citations (OpenAlex)
- 242
- Journals
- Journal on Mathematics Education
- OpenAlex
- A5109067767
- Name in journal metadata
- Ilma, Ratu
Publication summary
- Verified articles
- 9
- As first author
- 0
- Journal accreditation when published
- SINTA 1: 9
- Editorial notices
- none registered
9 articles use their journal's current rank, because the journals' accreditation history is not recorded yet.
Facts, not a score: Melola does not rate authors or compute credit points. The summary counts only articles linked through OpenAlex; articles matched by name alone are listed separately and not counted. Melola covers Indonesian journals harvested through OAI-PMH, so publications elsewhere may be missing. How notices are checked.
Co-authors
18 authors · 45 co-authorship links · 29 across different organisations
Hover or tap a name to highlight its co-authors. Double-click to open the author's page.
- Sriwijaya University
- Utrecht University
- Riau University
- State University of Semarang
- Yogyakarta State University
- Middle East Technical University
- Muhammadiyah University Purwokerto
- Other organisations
- Affiliation unknown
- Different organisations
- Same organisation
- Affiliation unknown
- Thicker line = more joint articles · bigger circle = more articles
Show as table
| Co-author | Organisation | Joint articles |
|---|---|---|
| Darmawijoyo Darmawijoyo | Sriwijaya University | 4 |
| Yusuf Hartono | Sriwijaya University | 3 |
| Jaap den Hertog | Utrecht University | 2 |
| Achmad Dhany Fachrudin | Sriwijaya University | 1 |
| Zetra Hainul Putra | Riau University | 1 |
| Somakim Somakim | Sriwijaya University | 1 |
| Farida Nursyahidah | State University of Semarang | 1 |
| Zulkardi Zulkardi | Sriwijaya University | 1 |
| Frans van Galen | Utrecht University | 1 |
| Dolly van Eerde | Utrecht University | 1 |
| Nila Mareta Murdiyani | Yogyakarta State University | 1 |
| Meryansumayeka Meryansumayeka | Sriwijaya University | 1 |
| Nenden Octavarulia Shanty | Middle East Technical University | 1 |
| Dédé de Haan | Utrecht University | 1 |
| Septi Triyani | Affiliation unknown | 1 |
| Anton Jaelani | Muhammadiyah University Purwokerto | 1 |
| Sri Imelda Edo | University of Nusa Cendana | 1 |
Affiliations come from OpenAlex; journal OAI-PMH metadata carries none. Authors without an OpenAlex ID are matched by name, which can merge or split people.
Where the co-authors are
- Sriwijaya University
- Indonesia
- Abroad
- Bigger circle = more records · institutions in the same city share one circle
6 institutions: 83% in Indonesia, 1 abroad.
Sign in to open the full map (150 tokens): every institution, a year filter, provinces, islands, distances and the trend per year.
Institutions on this map
| Institution | City | Province / region | Country | Records |
|---|---|---|---|---|
| Utrecht University | Utrecht | Utrecht | NL | 4 |
| Yogyakarta State University | Yogyakarta | DI Yogyakarta | ID | 1 |
| State University of Jakarta | Jakarta | DKI Jakarta | ID | 1 |
| Universitas PGRI Semarang | Semarang | Jawa Tengah | ID | 1 |
| University of Nusa Cendana | Kupang | Nusa Tenggara Timur | ID | 1 |
| Muhammadiyah University Purwokerto | Purwokerto | Jawa Tengah | ID | 1 |
Locations: ROR (main site of each institution). Affiliations: OpenAlex; records without OpenAlex affiliations are not counted. Map tiles from OpenStreetMap: opening this page loads them from openstreetmap.org.
Verified articles (9)
-
BUILDING STUDENTS’ UNDERSTANDING OF QUADRATIC EQUATION CONCEPT USING NAÏVE GEOMETRY
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SUPPORTING FIRST GRADE STUDENTS’ UNDERSTANDING OF ADDITION UP TO 20 USING TRADITIONAL GAME
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Developing a Model to Support Students in Solving Subtraction
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Students’ Strategies of Measuring Time Using Traditional Gasing Game in Third Grade of Primary School
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Investigating Secondary School Students’ Difficulties in Modeling Problems PISA-Model Level 5 And 6
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Supporting Student’s Ability in Understanding Least Common Multiple (LCM) Concept Using Storytelling
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Supporting First Grade Students Learning Number Facts Up To 10 Using A Parrot Game
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Structured Arrangement Supporting The Development of Splitting Level in Doing Multiplication By Number Up To 20
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Design Research on Mathematics Education: Investigating The Progress of Indonesian Fifth Grade Students’ Learning on Multiplication of Fractions With Natural Numbers
Linked by: Matched to an OpenAlex author.