Ferrer, M. (1975). An analytical study of the mental ability, academic achievement, and personality characteristics of grade, IV, V, VI and VII pupils at Good Shepherd Special schools [microform]. Photoduplication Service, University of the Philippines Library.

Ferrer, Mary. An Analytical Study of the Mental Ability, Academic Achievement, and Personality Characteristics of Grade, IV, V, VI and VII Pupils at Good Shepherd Special Schools [microform]. Quezon City: Photoduplication Service, University of the Philippines Library, 1975.

Ferrer, Mary. An Analytical Study of the Mental Ability, Academic Achievement, and Personality Characteristics of Grade, IV, V, VI and VII Pupils at Good Shepherd Special Schools [microform]. Photoduplication Service, University of the Philippines Library, 1975.