Buenaflor, S. S. (1974). A study of ballads in Negros Occidental [microform]. Photoduplication Service, University of the Philippines Library.
Chicago-referens (17:e uppl.)Buenaflor, Sampaguita S. A Study of Ballads in Negros Occidental [microform]. Quezon City: Photoduplication Service, University of the Philippines Library, 1974.
MLA-referens (9:e uppl.)Buenaflor, Sampaguita S. A Study of Ballads in Negros Occidental [microform]. Photoduplication Service, University of the Philippines Library, 1974.
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