Siregar AS, Syahputra I. Development of the Snake and Ladder Game as a Medium in Group Guidance to Build Students’ Positive Self-Concept. JOSC [Internet]. 2026 Sep. 17 [cited 2026 Sep. 18];4(2):1005-19. Available from: https://journal.scidacplus.com/index.php/josc/article/view/1068