Rizkinta EN, Surya E. Effect of Granting Reward on Learning Outcomes of Mathematics in Class iv of Public Primary School 014680 of Buntu Pane. IJSBAR [Internet]. 2017 Jun. 12 [cited 2025 Sep. 18];34(1):101-10. Available from: https://gssrr.org/JournalOfBasicAndApplied/article/view/7559