Orozco, J. A. (2013). Problem-based learning: Effects on critical and creative thinking skills in biology. College of Education, University of the Philippines Diliman.
Lua i Stíl Chicago (17ú heag.)Orozco, Jason A. Problem-based Learning: Effects on Critical and Creative Thinking Skills in Biology. Quezon City: College of Education, University of the Philippines Diliman, 2013.
Lua MLA (9ú heag.)Orozco, Jason A. Problem-based Learning: Effects on Critical and Creative Thinking Skills in Biology. College of Education, University of the Philippines Diliman, 2013.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.