Pratiwi, M., I. Kusuawaty, and D. Setiawati. “The Baby Sleep Quality Using of White Noise in Hypno Sleeping Process”. Journal of Maternal and Child Health Sciences (JMCHS), Vol. 1, no. 1, Dec. 2021, pp. 20-24, doi:10.36086/maternalandchild.v1i1.972.