Nasution SSZ, Ira Suryani. THE EFFECTIVENESS OF GROUP COUNSELING WITH SELF-REFLECTION TECHNIQUES TO REDUCE SELFISH ATTITUDES IN STUDENTS AT BOARDING SCHOOL SMP PLUS JABAL RAHMAH MULIA MEDAN. SJIIPS [Internet]. 2025 Nov. 18 [cited 2025 Nov. 25];14(4):2637-44. Available from: https://ejournal.unibabwi.ac.id/index.php/sosioedukasi/article/view/6493