Jesena, C. C. (1977). Hybrid vigor in F1 varietal crosses from local and introduced corn varieties [microform]. Photoduplication Service. University of the Philippines Library.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रJesena, Cesar C. Hybrid Vigor in F1 Varietal Crosses from Local and Introduced Corn Varieties [microform]. Quezon City: Photoduplication Service. University of the Philippines Library, 1977.
एमएलए (9वां संस्करण) प्रशस्ति पत्रJesena, Cesar C. Hybrid Vigor in F1 Varietal Crosses from Local and Introduced Corn Varieties [microform]. Photoduplication Service. University of the Philippines Library, 1977.
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