ACTING-OUT BEHAVIOR" PADA ANAK: ANALISIS KASUS DI KELAS 4A AKIBAT PERSAINGAN SAUDARA. albanin [Internet]. 2025 July 20 [cited 2026 May 26];3(1):1-7. Available from: https://journal-manager.darulfattah.ac.id/index.php/albanin/article/view/563