Dewi RM. Student Activity Sheets based on Scientific and Problem Based Learning (PBL) in the Introduction to Microeconomics course: How and Why?. J. Dig. Learn. Edu. [Internet]. 2022Apr.26 [cited 2026May19];2(1):22-30. Available from: https://journal.moripublishing.com/index.php/jdle/article/view/275