Derya Çelik, Zeynep Medine Özmen, Gönül Güneş, Gökay Açıkyıldız, Duygu Arabacı, Kadir Gürsoy, Mustafa Güler, Ramazan Gürbüz, Osman Birgin, Serhat Aydın. “Heads of Division’s Evaluation of Learning Opportunities Provided for Prospective Elementary Mathematics Teachers”. Turkish Journal of Computer and Mathematics Education (TURCOMAT), vol. 11, no. 1, Apr. 2020, pp. 15-52, https://turcomat.org/index.php/turkbilmat/article/view/224.