K. Elechi-Amadi, B. N. Peace, B. H. Opusunju, and A. Jiala, “Toxicological effects of prolonged exposure of soot-polluted air on some haematological and biochemical parameters of residents of Port Harcourt”, Int J Res Med Sci, vol. 7, no. 4, pp. 1063–1066, Mar. 2019.