Najamudin Najamudin, Surahman Hidayat, Mufidatul Azizah. Design of Aqidah Learning System Collaborative Learning Based Morals to Improve Students’ Social Skills. IJIER [Internet]. 2024 Jan. 30 [cited 2025 Apr. 28];1(1):01-10. Available from: https://international.aripafi.or.id/index.php/IJIER/article/view/148