Sabado, F. P. Paradoxes as learning activities for High School Mathematics.
Chicago Style aipamenaSabado, Federico P. Paradoxes as Learning Activities for High School Mathematics. Quezon City, 1979.
MLA aipamenaSabado, Federico P. Paradoxes as Learning Activities for High School Mathematics.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.