Valera, A. I. (1975). A study of the status of music education in the primary province of Negros Occidental for the school year 1967-1968 [microform]. Photoduplication Service, University of the Philippines Library.

Valera, Amelia Inocencio. A Study of the Status of Music Education in the Primary Province of Negros Occidental for the School Year 1967-1968 [microform]. Quezon City: Photoduplication Service, University of the Philippines Library, 1975.

Valera, Amelia Inocencio. A Study of the Status of Music Education in the Primary Province of Negros Occidental for the School Year 1967-1968 [microform]. Photoduplication Service, University of the Philippines Library, 1975.