HUBUNGAN SIKAP IBU TERHADAP KEJADIAN SIBLING RIVALRY DI YAYASAN PENDIDIKAN TIARA LHOKSEUMAWE. JKA [Internet]. 2021 Apr. 28 [cited 2026 Sep. 19];7(1):29-33. Available from: https://journal.umuslim.ac.id/index.php/jka/article/view/432