Ardales, V. B. (1992). Basic concepts and methods in research. Great Books Trading.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रArdales, Venancio B. Basic Concepts and Methods in Research. Quezon City: Great Books Trading, 1992.
एमएलए (9वां संस्करण) प्रशस्ति पत्रArdales, Venancio B. Basic Concepts and Methods in Research. Great Books Trading, 1992.
चेतावनी: ये उद्धरण हमेशा 100% सटीक नहीं हो सकते हैं.