Takdir, A. Q., C. B. Purnamasari, N. Y. Ompusunggu, S. Paramita, and S. Yani. “Antibacterial Activity of Stingless Bee Propolis (Heterotrigona Itama) Ethanol Extract on Dental Root Canal Bacteria Growth in Vitro”. International Journal of Multidisciplinary: Applied Business and Education Research, Vol. 5, no. 4, Apr. 2024, pp. 1127-33, doi:10.11594/ijmaber.05.04.01.