Subagtio ME, Nasution N, Jacky M. The Effect of Problem-Based Learning and Discovery Learning on Students’ Critical and Creative Thinking Skills on Material of Islamic Kingdom Development. Indones. J. Soc. Stud. [Internet]. 2021 Jul. 29 [cited 2025 Jul. 26];4(1):67-78. Available from: https://journal.unesa.ac.id/index.php/jpips/article/view/14228