Antonio, A. S., Araña, F. L., & Gonzales, P. R. (1993). A Project feasibility study Multi-Fuel Energizer. College of Engineering.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रAntonio, Ashley S., Francisco L. Araña, और Peter R. Gonzales. A Project Feasibility Study Multi-Fuel Energizer. Diliman, Quezon City: College of Engineering, 1993.
एमएलए (9वां संस्करण) प्रशस्ति पत्रAntonio, Ashley S., et al. A Project Feasibility Study Multi-Fuel Energizer. College of Engineering, 1993.
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