Guzman, O. G. (1977). A correlation study of the HSGA, NCEE scores and the CGPA of selected college freshmen of Divine Word University 1975-1976 and its implications to the school's career guidance program. Animo Repository.

Guzman, Orlando G. A Correlation Study of the HSGA, NCEE Scores and the CGPA of Selected College Freshmen of Divine Word University 1975-1976 and Its Implications to the School's Career Guidance Program. Animo Repository, 1977.

Guzman, Orlando G. A Correlation Study of the HSGA, NCEE Scores and the CGPA of Selected College Freshmen of Divine Word University 1975-1976 and Its Implications to the School's Career Guidance Program. Animo Repository, 1977.