Satria, D., Rifda Amaliya Ma’ruf, Syukur Berkat Waruwu, Urip Harahap and Hari Purnomo4 (2023) “Antioxidant activity of 1.3-bis(p-hydroxyphenyl)urea by CUPRAC and FRAP methods”, Indonesian Journal of Pharmaceutical and Clinical Research, 6(1), pp. 48–54. doi: 10.32734/idjpcr.v6i1.17768.