Khadijah M, Minarni A. Application of Digital Books through Guided Discovery Learning to Improve Mathematical Problem Solving Ability of Class VIII Students at SMP Swasta Dharma Patra. AJAE [Internet]. 2023 Jan. 30 [cited 2024 Sep. 19];2(1):77-98. Available from: https://journal.formosapublisher.org/index.php/ajae/article/view/2538