COMBINATION OF BABY EXERCISE AND CLASSICAL MUSIC TOWARDS SLEEP DURATION OF 3 MONTHS BABIES. JURNAL IBU DAN ANAK, [S. l.], v. 9, n. 2, p. 70–74, 2022. DOI: 10.36929/jia.v9i2.395. Disponível em: https://jurnal.pkr.ac.id/JIA/article/view/395. Acesso em: 19 jan. 2026.