Syahruddin, S., Manfred Mandosir, Y., Eka Wijaya Putra, I. P., Sinaga, E., & Kristanto, B. (2021). The effect of vitamin C supplementation on maximum physical activity toward leucocytes total. Jurnal SPORTIF : Jurnal Penelitian Pembelajaran, 7(1), 105-123. https://doi.org/10.29407/js_unpgri.v7i1.15715