Gaya APA

Loh, P. (Postkid.com : Singap). Mathematics Topical revision : P6B, The school curriculum-based series . Singapura: Postkid.com : Singapore, 2002.

Gaya MLA

Loh, PS. "Mathematics Topical revision : P6B, The school curriculum-based series". Singapura: Postkid.com : Singapore, 2002, Postkid.com : Singap. Text.