Borja, D. V. H. (2011). Water projects and discount rates. College of Business Administration, University of the Philippines.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBorja, Daniel Vincent H. Water Projects and Discount Rates. Quezon City: College of Business Administration, University of the Philippines, 2011.
एमएलए (9वां संस्करण) प्रशस्ति पत्रBorja, Daniel Vincent H. Water Projects and Discount Rates. College of Business Administration, University of the Philippines, 2011.
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