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ERIC
JTPI is not index in ERIC but we send all the published articles to ERIC for submission.
Articles in ERIC: Sachunterricht, GeoGuessr
OpenAire


Index Copernicus OALIB index


Base Index IIJIF Index


ESJI index Türk Eğitim İndeksi


I2OR index DRJI index


Research Bib Sis Index


Cosmos Academic Keys


Issuu Journalpark index


Google Scholar


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