Antibacterial and antioxidant activities of ethanolic and water extracts of stingless bees Tetrigona binghami, Heterotrigona itama, and Geniotrigona thoracica propolis found in Bru... av Zullkiflee, Nadzirah, Taha, Hussein, Abdullah, Nurul Aliah, Hashim, Fatimah, Usman, Anwar