Cinthya Riris, A.A.I.D. et al. 2021. Role of antioxidant to protect Leydig cells induced by reactive oxygen species: a literature review. Qanun Medika - Medical Journal Faculty of Medicine Muhammadiyah Surabaya. 5, 1 (Jan. 2021), 49–60. DOI:https://doi.org/10.30651/jqm.v5i1.4693.