Kustiawan, P. M., Aziz, A., & Yuliawan, V. N. (2022). Antioxidant and Antibacterial Activity of Various Fractions of Heterotrigona itama Propolis Found in Kutai Kartanegara. Open Access Macedonian Journal of Medical Sciences, 10(A), 531–534. https://doi.org/10.3889/oamjms.2022.7766