Maharditha, I.G., Soetjiningsih, S. and Suandi, I.K. 2016. Cognitive development in babies with exclusive breastfeeding using Mullen Scale test. Paediatrica Indonesiana. 48, 5 (Sep. 2016), 278-83. DOI:https://doi.org/10.14238/pi48.5.2008.278-83.