Nadjamuddin, Mirfaidah, et al. “Test the Antioxidant Effectiveness of Oyster Mushroom (Pleurotus Ostreatus) Ethyl Acetate Fraction Cream Formula Using FRAP (Ferric Reducing Antioxidant Power) and ABTS (2,2’-Azino-Bis-(3-Ethylbenzothiazoline-6-Sulphonic Acid) Methods)”. Jurnal Penelitian Pendidikan IPA, vol. 9, no. 12, Dec. 2023, pp. 10985-90, doi:10.29303/jppipa.v9i12.6118.