Espenido, M. I. (2007). Processing and economics of nickel laterites. The Mindanao Forum: official journal of the MSU-Iligan Institute of Technology.
Lua i Stíl Chicago (17ú heag.)Espenido, Mercurio I. "Processing and Economics of Nickel Laterites." The Mindanao Forum: Official Journal of the MSU-Iligan Institute of Technology 2007.
Lua MLA (9ú heag.)Espenido, Mercurio I. "Processing and Economics of Nickel Laterites." The Mindanao Forum: Official Journal of the MSU-Iligan Institute of Technology, 2007.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.