Agustina, Ika. “The Effectiveness of Health Education of Breasfeeding Preparation on Primigravida Mothers Motivation to Provide Exclusivation”. Jurnal Ners Dan Kebidanan (Journal of Ners and Midwifery), vol. 5, no. 1, Apr. 2018, pp. 074-8, doi:10.26699/jnk.v5i1.ART.p074-078.