SYAHRUDDIN, S.; MANFRED MANDOSIR, Y.; EKA WIJAYA PUTRA, I. P.; SINAGA, E.; KRISTANTO, B. The effect of vitamin C supplementation on maximum physical activity toward leucocytes total. Jurnal SPORTIF : Jurnal Penelitian Pembelajaran, v. 7, n. 1, p. 105-123, 30 Apr. 2021.