APA (7th ed.) Citation

Lena Abdullah & Lai, M. (2006). A step by step maths problem solving guide 2: Book 1. Jade Green Publications Sdn.Bhd..

Chicago Style (17th ed.) Citation

Lena Abdullah and Magdalene Lai. A Step by Step Maths Problem Solving Guide 2: Book 1. Kuala Lumpur: Jade Green Publications Sdn.Bhd., 2006.

MLA (9th ed.) Citation

Lena Abdullah and Magdalene Lai. A Step by Step Maths Problem Solving Guide 2: Book 1. Jade Green Publications Sdn.Bhd., 2006.