Concepcion, T. C. (1975). A study of the sight-vocabulary recognition by Filipino-trained children in Tacurong District, Cotabato, Division I, based on the 220 dolch basic sight words [microform]. Photoduplication Service, University of the Philippines Library.

Concepcion, Trinidad Cruz. A Study of the Sight-vocabulary Recognition by Filipino-trained Children in Tacurong District, Cotabato, Division I, Based on the 220 Dolch Basic Sight Words [microform]. Quezon City: Photoduplication Service, University of the Philippines Library, 1975.

Concepcion, Trinidad Cruz. A Study of the Sight-vocabulary Recognition by Filipino-trained Children in Tacurong District, Cotabato, Division I, Based on the 220 Dolch Basic Sight Words [microform]. Photoduplication Service, University of the Philippines Library, 1975.