Fitri Rahmayani Hasibuan; Misla Hasanah Daulay; Erti Kemala Sari; Reni Wahyuni Hasibuan; Demli Irama Hasibuan. Efforts to Improve Learning Achievement in Islamic Religious Education by Implementing a Collaborative Learning Model for Students at SD Negeri 1308 Hasahatan Julu. JPG 2025, 1, 427-431.