Erkol, Mehmet. “Effect of Vee Diagram on the Achievements and Attitudes of Students in Science Laboratory Course-II”. New Trends and Issues Proceedings on Humanities and Social Sciences 3, no. 1 (June 28, 2017): 500–505. Accessed April 29, 2024. https://www.un-pub.eu/ojs/index.php/pntsbs/article/view/1812.