Campomanes, E. P. (1987). The effectiveness of the process approach in the development of scientific attitudes and in the acquisition of concepts in high school science 1. IN Thesis abstracts [column]. Leyte-Samar Studies.

Campomanes, Elisa P. "The Effectiveness of the Process Approach in the Development of Scientific Attitudes and in the Acquisition of Concepts in High School Science 1. IN Thesis Abstracts [column]." Leyte-Samar Studies 1987.

Campomanes, Elisa P. "The Effectiveness of the Process Approach in the Development of Scientific Attitudes and in the Acquisition of Concepts in High School Science 1. IN Thesis Abstracts [column]." Leyte-Samar Studies, 1987.