Abanto, R. A., Abarques, J., & Cordova, K. I. (2003). A production and operations management study on Century Pipes Corporation. College of Engineering.

Abanto, Ray Anthony, Joselito Abarques, and Kenneth Irving Cordova. A Production and Operations Management Study on Century Pipes Corporation. Diliman, Quezon City: College of Engineering, 2003.

Abanto, Ray Anthony, et al. A Production and Operations Management Study on Century Pipes Corporation. College of Engineering, 2003.