Cita APA (7th ed.)

Yeap Ban Har. (2008). Problem solving in the mathematics classroom (Primary). Shinglee Publishers.

Cita Chicago (17th ed.)

Yeap Ban Har. Problem Solving in the Mathematics Classroom (Primary). Singapore: Shinglee Publishers, 2008.

Cita MLA (9th ed.)

Yeap Ban Har. Problem Solving in the Mathematics Classroom (Primary). Shinglee Publishers, 2008.