Sari S, Pandiangan T, Harahap J, Yanti Y. COMBINATION OF BABY EXERCISE AND CLASSICAL MUSIC TOWARDS SLEEP DURATION OF 3 MONTHS BABIES. JIA [Internet]. 18Jan.2022 [cited 23Apr.2024];9(2):70-4. Available from: https://jurnal.pkr.ac.id/index.php/JIA/article/view/395