Sulthon M, Pujiastuti P, Retnawati H. What is the teacher’s challenge on the developing of learning media to increase critical thinking ability and the character?. J. Prim. Edukasia [Internet]. 2021 Jan. 11 [cited 2025 Jun. 4];9(1):55-64. Available from: https://journal.uny.ac.id/index.php/jpe/article/view/34876