Apolinario, N. A., Segovia, C. B., & Silva, R. O. (1999). Statistical quality control study on Filipino Pipe & Foundry Corp. College of Engineering.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रApolinario, Napoleon A., Cesar B. Segovia, और Ronaldo O. Silva. Statistical Quality Control Study on Filipino Pipe & Foundry Corp. Diliman, Quezon City: College of Engineering, 1999.
एमएलए (9वां संस्करण) प्रशस्ति पत्रApolinario, Napoleon A., et al. Statistical Quality Control Study on Filipino Pipe & Foundry Corp. College of Engineering, 1999.
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