Nones, M. C. A., & Ravina, M. C. V. (1992). Theme abstraction through semantic correlation. College of Arts and Letters, University of the Philippines Diliman.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNones, Maria Cecilia A., और Ma. Clara V. Ravina. Theme Abstraction Through Semantic Correlation. Quezon City: College of Arts and Letters, University of the Philippines Diliman, 1992.
एमएलए (9वां संस्करण) प्रशस्ति पत्रNones, Maria Cecilia A., और Ma. Clara V. Ravina. Theme Abstraction Through Semantic Correlation. College of Arts and Letters, University of the Philippines Diliman, 1992.
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