Martinez, H. N. (1976). The development of the teaching of national language in the public schools in the Philippines [microform]. Photoduplication Service. University of the Philippines Library.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रMartinez, Hilaria Natividad. The Development of the Teaching of National Language in the Public Schools in the Philippines [microform]. Quezon City: Photoduplication Service. University of the Philippines Library, 1976.
एमएलए (9वां संस्करण) प्रशस्ति पत्रMartinez, Hilaria Natividad. The Development of the Teaching of National Language in the Public Schools in the Philippines [microform]. Photoduplication Service. University of the Philippines Library, 1976.
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