Hardini, Deisy Sri, et al. “Aplikasi Teori Transcultural Nursing Melalui Intervensi Biological Maternal Sounds Untuk Kebutuhan Perilaku Tidur-Terjaga Bayi Prematur Di Ruang Perinatologi RSUPN Cipto Mangunkusumo Jakarta”. Prosiding University Research Colloquium, Oct. 2019, pp. 743-50, https://repository.urecol.org/index.php/proceeding/article/view/716.