I. Usoh, E. Akpan, E. Etim, and E. Farombi, “Antioxidant Actions of Dried Flower Extracts of Hibiscus sabdariffa L. On Sodium Arsenite - Induced Oxidative Stress in Rats”, Pak. J. Nutr., vol. 4, no. 3, pp. 135–141, Apr. 2005, doi: 10.3923/pjn.2005.135.141.