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.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Zullkiflee, Nadzirah, Hussein Taha, Nurul Aliah Abdullah, Fatimah Hashim, و 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 .
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)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, .