Siriban-Manalang, A. B. D., Asio, M. J., Botuyan, M. J., & Virola, H. R. (1992). A Productivity and feasibility study report on Cadua Machine Works. College of Engineering.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSiriban-Manalang, Anna Bella D., Manuel Jr Asio, Mary Jean Botuyan, और Henry Rophen Virola. A Productivity and Feasibility Study Report on Cadua Machine Works. Diliman, Quezon City: College of Engineering, 1992.
एमएलए (9वां संस्करण) प्रशस्ति पत्रSiriban-Manalang, Anna Bella D., et al. A Productivity and Feasibility Study Report on Cadua Machine Works. College of Engineering, 1992.
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