Rizkinta, Elga Novira, and Edy Surya. “Effect of Granting Reward on Learning Outcomes of Mathematics in Class Iv of Public Primary School 014680 of Buntu Pane”. International Journal of Sciences: Basic and Applied Research (IJSBAR) 34, no. 1 (June 12, 2017): 101–110. Accessed May 5, 2024. https://www.gssrr.org/index.php/JournalOfBasicAndApplied/article/view/7559.