Search Results       Your search for [author]Duya, Regina M., 1930- returned 1 record.           Validity study of the Otis-Lennon mental ability test in some grade one provincial primary schools [microform]. by Duya, Regina M., 1930-; Quezon City: Photoduplication Service. University of the Philippines Library, 1975. Subject: Otis-Lennon Mental Ability Test; Mental tests -- Philippines.          Add to Book Cart Relevance: 27.49%