1.
Hakim ZR, Riyani E. PENERAPAN MODEL PEMBELAJARAN PROBLEM BASED LEARNING PADA MATA PELAJARAN IPS. at-tadib [Internet]. 2015 May 1 [cited 2024 Nov. 24];1(2):143-61. Available from: https://ejournal.uika-bogor.ac.id/index.php/at-tadib/article/view/139