Salsabila, Puteri Sahra, and Shinta Nareswari. “The Effect of Breakfast on Learning Concentration”. Medical Profession Journal of Lampung 13, no. 1 (January 29, 2023): 146-150. Accessed August 26, 2026. https://mail.journalofmedula.com/index.php/medula/article/view/593.