Tadena, A. B. (1975). Character education materials in English and Filipino language used in the public elementary schools [microform]. Photoduplication Service, University of the Philippines Library.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रTadena, Amparo Bernardo. Character Education Materials in English and Filipino Language Used in the Public Elementary Schools [microform]. Quezon City: Photoduplication Service, University of the Philippines Library, 1975.
एमएलए (9वां संस्करण) प्रशस्ति पत्रTadena, Amparo Bernardo. Character Education Materials in English and Filipino Language Used in the Public Elementary Schools [microform]. Photoduplication Service, University of the Philippines Library, 1975.
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