Yaro, S.A., and V.S. Aigbodion. “The Effect of Chromium and Manganese Addition on the Corrosion of As-Cast Al-Si-Fe-Cu Alloy System in Caustic Soda”. Eurasian Chemico-Technological Journal, vol. 10, no. 1, Jan. 2008, pp. 79-84, doi:10.18321/ectj443.