Abd Rani, N.F., Ibrahim, M., Abdul Ghani, R., Azahari, N. and Hagar, A. 2021. ANTIOXIDANT ACTIVITY OF AQUEOUS EXTRACT OF TRIGONA SPP. PROPOLIS USING RESPONSE SURFACE METHODOLOGY. INTERNATIONAL JOURNAL OF ALLIED HEALTH SCIENCES. 5, 1 (Apr. 2021), 2137. DOI:https://doi.org/10.31436/ijahs.v5i1.574.