Praditi, Citra, et al. “Relative Hypoxia and Oxidative Stress in Spleen Lymphocytes of Immunized Balb C Mice As Indicated by HIF-1α, HIF-2α, Nrf2 Expression, and Glutathione Peroxidase Activity”. Medical Journal of Indonesia, vol. 27, no. 4, Dec. 2018, pp. 223-8, doi:10.13181/mji.v27i4.2152.