Siregar, Nur Hasanah, Asriwati Amirah, and Mayang Wulan. 2022. “The Effect of the Combination of the Baby Spa Method and Mozart’s Classical Music on the Gross Motor Development of Babies ”. International Journal Papier Advance and Scientific Review 3 (1):25-32. https://doi.org/10.47667/ijpasr.v3i1.143.