Rumalean, Hijrianti, et al. “Giving Exclusive Breastfeeding and Maternal Gestational Age Affects the Developmental Delay of Children Aged 3-36 Months”. JURNAL INFO KESEHATAN, vol. 18, no. 1, June 2020, pp. 1-8, doi:10.31965/infokes.Vol18.Iss1.302.