C. Wijaya, D. Y. setyaji, and R. Maria, “EFFECT OF ADDITIONAL GUAVA (Psidium guajava) ON ORGANOLEPTICS PROPERTIES, PH VALUE, AND VITAMIN C LEVELS IN COWPEA YOGURT (Psidium guajava)”, jgn, vol. 3, no. 1, pp. 223 - 235, Aug. 2023.