Chisuwan, C., T. Prasopkittikun, P. Sangperm, and S. Payakkaraung. “Predictive Power of Support from Husbands, Grandmothers, and Nurses on Duration of Exclusive Breastfeeding”. Nursing Science Journal of Thailand, vol. 30, no. 1, Mar. 2012, pp. 70-80, https://he02.tci-thaijo.org/index.php/ns/article/view/10268.