Campo, P. C., & Ramos, M. C. (2008). Integrating project-based science-learning with teaching selected physical chemistry concepts using the environment as context. University of the Philippines, College of Education.

Campo, Pia C., and Maria Carmina Ramos. Integrating Project-based Science-learning with Teaching Selected Physical Chemistry Concepts Using the Environment as Context. [Quezon City]: University of the Philippines, College of Education, 2008.

Campo, Pia C., and Maria Carmina Ramos. Integrating Project-based Science-learning with Teaching Selected Physical Chemistry Concepts Using the Environment as Context. University of the Philippines, College of Education, 2008.