Wihansah, R. R. S., I. I. Arief, and I. Batubara. 2018. “Anti-Diabetic Potency and Characteristics of Probiotic Goat-Milk Yogurt Supplemented With Roselle Extract During Cold Storage”. Tropical Animal Science Journal 41 (3), 191-99. https://doi.org/10.5398/tasj.2018.41.3.191.