EFEKTIVITAS MODEL PROBLEM BASED LEARNING BERBANTUAN MEDIA BOARD GAME EDUKASI TERHADAP PEMAHAMAN KONSEP IPAS KELAS IV SD 6 JEKULO. j. manaj. pendidik. [Internet]. 2026 Aug. 31 [cited 2026 Sep. 18];11(4):10001-13. Available from: https://ejurnal.stkip-pessel.ac.id/index.php/jmp/article/view/3348