Ridwan, Ahmad, Ayu Nirmala Sari, and Ramadhani Eka Putra. 2015. “The Potency of Trigona’s Propolis Extract As Reactive Oxygen Species Inhibitor in Diabetic Mice”. Journal of Mathematical and Fundamental Sciences 47 (3):261-68. https://doi.org/10.5614/j.math.fund.sci.2015.47.3.4.