Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (9a ed.)

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