GINTING, Agustaria; BARUS, Mardiati; PARDOSI, Ester Rahel. Gambaran Tingkat Pengetahuan Dan Sikap Ibu Tentang Sibling Rivalry Pada Anak Usia Prasekolah Di TK Katolik Assisi Medan Tahun 2024. Innovative: Journal Of Social Science Research, [S. l.], v. 4, n. 6, p. 6897–6907, 2024. DOI: 10.31004/innovative.v4i6.16905. Disponível em: https://j-innovative.org/index.php/Innovative/article/view/16905. Acesso em: 28 sep. 2026.