Manuharan, Arulmoli, Hatijah Basri, and Atqiya Muslihati. 2021. “Antioxidant and Antibacterial Activity of Propolis Extract from Stingless Bee in Malaysia”. Enhanced Knowledge in Sciences and Technology 1 (1):34-41. https://publisher.uthm.edu.my/periodicals/index.php/ekst/article/view/637.