Oppy aesaiw. 2019. “Formulation and Determination of Sun Protection Factor (SPF) of Sunscreen Gel Preparations Containing Epigallocatechin Gallate (EGCG) Using the Spectrophotometric Method”. Strada Journal of Pharmacy 1 (1):26-31. https://doi.org/10.30994/sjp.v1i1.123.