“The Effect of the Application of the Problem Based Learning Model on Mathematics Learning Outcomes of Mathematics Sentence Material Grade III SDN Ragung 1”. Literasi Nusantara 6, no. 1 (January 10, 2026): 292–300. Accessed August 3, 2026. https://ejournal.citradharma.org/index.php/literasinusantara/article/view/1637.