PRATAMI, D. K., A. MUN’IM, H. HERMANSYAH, M. GOZAN, and M. SAHLAN. “MICROENCAPSULATION OPTIMIZATION OF PROPOLIS ETHANOLIC EXTRACT FROM TETRAGONULA SPP USING RESPONSE SURFACE METHODOLOGY”. International Journal of Applied Pharmaceutics, vol. 12, no. 4, July 2020, pp. 197-06, doi:10.22159/ijap.2020v12i4.37808.