Abanto, R. A., Abarques, J., & Cordova, K. I. (2003). A production and operations management study on Century Pipes Corporation. College of Engineering.
Lua i Stíl Chicago (17ú heag.)Abanto, Ray Anthony, Joselito Abarques, agus Kenneth Irving Cordova. A Production and Operations Management Study on Century Pipes Corporation. Diliman, Quezon City: College of Engineering, 2003.
Lua MLA (9ú heag.)Abanto, Ray Anthony, et al. A Production and Operations Management Study on Century Pipes Corporation. College of Engineering, 2003.
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