Hakim, Zerri Rahman, and Estu Riyani. “PENERAPAN MODEL PEMBELAJARAN PROBLEM BASED LEARNING PADA MATA PELAJARAN IPS”. ATTA`DIB 1, no. 2 (May 1, 2015): 143–161. Accessed February 12, 2026. http://150.107.142.43/index.php/at-tadib/article/view/139.