Latara, Nurmifta, Hilman Adam, and Irny E. Maino. “The Relationship Between Breakfast Habits and Learning Concentration in Students at SMP Negeri 8 Manado”. Journal of Scientific Insights 3, no. 1 (January 26, 2026): 30–37. Accessed February 9, 2026. https://journal.scitechgrup.com/index.php/jsi/article/view/642.