Zummah, Atiqoh, et al. “Eco-Enzyme from Orange Peel As a Key Ingredient in Anti Acne Peel-off Gel Mask”. Jurnal Ilmiah Biologi Eksperimen Dan Keanekaragaman Hayati (J-BEKH), vol. 11, no. 2, Nov. 2024, pp. 43-50, doi:10.23960/jbekh.v11i2.387.