Paweena Khansila, Wannatida Yonwilad, Prapaporn Nongharnpituk, Suwannawat Thienyutthakul. Improving Academic Performance in Geometry Using a Mastery Learning Approach through GeoGebra. JEI [Internet]. 2024 Jun. 16 [cited 2024 Sep. 20];8(2):pp. 876-894. Available from: https://macrojournal.org/index.php/jei/article/view/1135