Tupas, I. Locally produced resource materials and improved textbooks. Education quarterly..
Chicago Style aipamenaTupas, Isabelo. "Locally Produced Resource Materials and Improved Textbooks." Education Quarterly. .
MLA aipamenaTupas, Isabelo. "Locally Produced Resource Materials and Improved Textbooks." Education Quarterly., .
Kontuz: berrikusi erreferentzia hauek erabili aurretik.