Antioxidant Activity Studies of Methanol Extract of Ciplukan Leaves using the Method of 2,2-DIPHENYL 1-PICRILHIDRAZYL (DPPH). JPFI [Internet]. 2020 Sep. 14 [cited 2024 Nov. 27];9(1):31-6. Available from: http://ejournal2.stifar-riau.ac.id/index.php/jpfi/article/view/800