THE EFFECT OF RIVALRY CIBLING WITH SOCIAL ADAPTATION OF CHILDREN 11-12 YEARS OLD. Jurnal Penelitian Sekolah Tinggi Ilmu Kesehatan Nahdlatul Ulama Tuban, [S. l.], v. 3, n. 1, 2021. DOI: 10.47710/jp.v3i1.63. Disponível em: https://ejournal.iiknutuban.ac.id/index.php/jp/article/view/63. Acesso em: 20 jul. 2025.