Coloma, T. M. (1976). A study of the extent and causes of dropouts of the eight (8) high schools of Laoag City for the school years 1966-1967 to 1969-1970 [microform]. Photoduplication Service, University of the Philippines Library.

Coloma, Teresita Miguel. A Study of the Extent and Causes of Dropouts of the Eight (8) High Schools of Laoag City for the School Years 1966-1967 to 1969-1970 [microform]. Quezon City: Photoduplication Service, University of the Philippines Library, 1976.

Coloma, Teresita Miguel. A Study of the Extent and Causes of Dropouts of the Eight (8) High Schools of Laoag City for the School Years 1966-1967 to 1969-1970 [microform]. Photoduplication Service, University of the Philippines Library, 1976.