Fong, N. S. (2004). Mathematics in action. Longman.
Cita Chicago (17th ed.)Fong, Ng Swee. Mathematics in Action. Singapore: Longman, 2004.
Cita MLA (8th ed.)Fong, Ng Swee. Mathematics in Action. Longman, 2004.
Atenció: Aquestes cites poden no estar 100% correctes.