Paik, Yong-Duk. (1977). The Q methodology in determining educational attitudes of some Philippine teachers: A preliminary study [microform]. Photoduplication Service. University of the Philippines Library.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रPaik, Yong-Duk. The Q Methodology in Determining Educational Attitudes of Some Philippine Teachers: A Preliminary Study [microform]. Quezon City: Photoduplication Service. University of the Philippines Library, 1977.
एमएलए (9वां संस्करण) प्रशस्ति पत्रPaik, Yong-Duk. The Q Methodology in Determining Educational Attitudes of Some Philippine Teachers: A Preliminary Study [microform]. Photoduplication Service. University of the Philippines Library, 1977.
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