Cita APA (7th ed.)
Frederick K. S. Leung, K. P. Algebra Teaching around the World. Sense.
Cita Chicago (17th ed.)
Frederick K. S. Leung, Kyungmee Park. Algebra Teaching Around the World. Rotterdam, Holanda: Sense.
Cita MLA (9th ed.)
Frederick K. S. Leung, Kyungmee Park. Algebra Teaching Around the World. Sense.
Atenció: Aquestes cites poden no estar 100% correctes.