RIANI BAIDURI SIREGAR; HERI SAPUTRA; RUDI PURWANA; ANI RAMAHDHANI. Pengaruh Tummy Time Exsercise terhadap Peningkatan Motorik Bayi 3 Bulan - 6 Bulan di Klinik Physioroom Medan Selayang . Harmoni Sosial : Jurnal Pengabdian dan Solidaritas Masyarakat, [S. l.], v. 2, n. 3, p. 178–184, 2025. DOI: 10.62383/harmoni.v2i3.1917. Disponível em: https://pkm.lpkd.or.id/index.php/Harmoni/article/view/1917. Acesso em: 22 mar. 2026.