1.
Setiawan B, Rachmadtullah R, Iasha V. Problem-Solving Method: The Effectiveness of The Pre-service Elementary Education Teacher Activeness in The Concept of Physics Content. basicedu [Internet]. 2020 Aug. 30 [cited 2024 Jul. 3];4(4):1074-83. Available from: https://jbasic.org/index.php/basicedu/article/view/484