Ardales, V. B. (1992). Basic concepts and methods in research. Great Books Trading.
Chicago Style (17th ed.) CitationArdales, Venancio B. Basic Concepts and Methods in Research. Quezon City: Great Books Trading, 1992.
MLA citiranjeArdales, Venancio B. Basic Concepts and Methods in Research. Great Books Trading, 1992.
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