P. Irfa Apriliyanti, M. Zakir, and N. Hariani Soekamto, “SYNTHESIS OF SILVER NANOPARTICLES USING BIOREDUCTOR OF KETAPANG LEAF EXTRACT (Terminalia catappa) AND ITS POTENTIAL AS SUNSCREEN”, ICA, vol. 10, no. 1, pp. 1-19, May 2019.