I. C. Paz Astudillo, P. J. Meza Castellar, M. A. Villalobos Vásquez, and D. E. Pedroza Periñán, “Evaluation of theobroma cacao pod husk extracts as corrosion inhibitor for carbon steel”, CT&F Cienc. Tecnol. Futuro, vol. 6, no. 3, pp. 147–156, Jun. 2016.