T. Kheawnet, U. Laothong, S. Nanthamongkolchai, and A. Phetrak, “Effects of breastfeeding promotion program for late adolescent mothers via social media in the Faculty of Medicine Vajira Hospital,Navamindradhiraj University”, JNHR, vol. 21, no. 3, pp. 54–68, Dec. 2020.