M. Abdulwahab, L. Sani, S. Yoro, and O. Umaru, “Inhibitive effect by Psidium guajava leaf extract on the corrosion of Al-Si-Mg (SSM-HPDC) alloy in simulated seawater environment”, Metall Mater Eng, vol. 21, no. 4, pp. 241–252, Dec. 2015.