Wilandri, Galuh Lintang, Nurul Kusumawardani, Daisy T. Viray, and Veriani Aprilia. “Red Spinach-Containing Snack Food Improved Hemoglobin and Hematocrit Levels of Girl Adolescents in Riau Archipelago”. Jurnal Gizi dan Dietetik Indonesia (Indonesian Journal of Nutrition and Dietetics) 11, no. 3 (December 4, 2023): 152–159. Accessed October 23, 2026. https://ejournal.almaata.ac.id/IJND/article/view/3155.