فهرس المقالات Mehmet Fatih Amasyali المقاله 1 - A Turkish Dataset and BERTurk-Contrastive Model for Semantic Textual Similarity 10.61186/jist.48127.13.49.24 Somaiyeh Dehghan Mehmet Fatih Amasyali Journal of Information Systems and Telecommunication (JIST) , العدد 1 , السنة 13 , زمستان 2025