Khalifah, Dian Nur, et al. “Breakfast Habits, Physical Activities, and Overweight in Elementary School Children”. Jurnal Gizi Dan Dietetik Indonesia (Indonesian Journal of Nutrition and Dietetics), vol. 7, no. 1, Dec. 2019, pp. 9-15, doi:10.21927/ijnd.2019.7(1).9-15.