Sabado, F. P. Paradoxes as learning activities for High School Mathematics.
Cita Chicago (17th ed.)Sabado, Federico P. Paradoxes as Learning Activities for High School Mathematics. Quezon City, 1979.
Cita MLA (9th ed.)Sabado, Federico P. Paradoxes as Learning Activities for High School Mathematics.
Atenció: Aquestes cites poden no estar 100% correctes.