Jesena, C. C. (1977). Hybrid vigor in F1 varietal crosses from local and introduced corn varieties [microform]. Photoduplication Service. University of the Philippines Library.
Lua i Stíl Chicago (17ú heag.)Jesena, 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.
Lua MLA (9ú heag.)Jesena, Cesar C. Hybrid Vigor in F1 Varietal Crosses from Local and Introduced Corn Varieties [microform]. Photoduplication Service. University of the Philippines Library, 1977.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.