Zullkiflee, N., Taha, H., Abdullah, N. A., Hashim, F., & Usman, A. Antibacterial and antioxidant activities of ethanolic and water extracts of stingless bees Tetrigona binghami, Heterotrigona itama, and Geniotrigona thoracica propolis found in Brunei. Philippine Journal of Science.
Lua i Stíl Chicago (17ú heag.)Zullkiflee, Nadzirah, Hussein Taha, Nurul Aliah Abdullah, Fatimah Hashim, agus Anwar Usman. "Antibacterial and Antioxidant Activities of Ethanolic and Water Extracts of Stingless Bees Tetrigona Binghami, Heterotrigona Itama, and Geniotrigona Thoracica Propolis Found in Brunei." Philippine Journal of Science .
Lua MLA (9ú heag.)Zullkiflee, Nadzirah, et al. "Antibacterial and Antioxidant Activities of Ethanolic and Water Extracts of Stingless Bees Tetrigona Binghami, Heterotrigona Itama, and Geniotrigona Thoracica Propolis Found in Brunei." Philippine Journal of Science, .