FITRI, Risqy Nur; TRI PUTRI, Magdalena. Pengaruh Tummy Time Menggunakan Playmat Terhadap Perkembangan Motorik Kasar Pada Bayi Usia ≤ 6 Bulan. Innovative: Journal Of Social Science Research, [S. l.], v. 5, n. 4, p. 9743–9754, 2025. DOI: 10.31004/innovative.v5i4.21070. Disponível em: https://j-innovative.org/index.php/Innovative/article/view/21070. Acesso em: 28 jun. 2026.