Baltacı and Coşkun
Arkan Sezgin and Baysal
Doğan and Saraçoğlu
Köseoğlu and Yıldız
Öztürk and Aksu
Sevinç Tuhanioğlu and Gizir
Tule ÖZAY, Yasin AKAY
(HAYEF: Journal of Education 2014; 11: 205-217)