Laping, J. A. (1977). The relationship of mental ability, personality factors, teaching attitudes and efficiency ratings of elementary school teachers in one of the districts in the province of Cebu [microform]. Photoduplication Service. University of the Philippines Library.
Lua i Stíl Chicago (17ú heag.)Laping, Jose A. The Relationship of Mental Ability, Personality Factors, Teaching Attitudes and Efficiency Ratings of Elementary School Teachers in One of the Districts in the Province of Cebu [microform]. Quezon City: Photoduplication Service. University of the Philippines Library, 1977.
Lua MLA (9ú heag.)Laping, Jose A. The Relationship of Mental Ability, Personality Factors, Teaching Attitudes and Efficiency Ratings of Elementary School Teachers in One of the Districts in the Province of Cebu [microform]. Photoduplication Service. University of the Philippines Library, 1977.