Lena Abdullah & Lai, M. (2006). A step-by-step Maths problem solving guide 3: Linear inequalities, linear equations ii,polygons ii (book 2). Jade Green Publications.
Chicago Style (17th ed.) CitationLena Abdullah and Magdalene Lai. A Step-by-step Maths Problem Solving Guide 3: Linear Inequalities, Linear Equations Ii,polygons Ii (book 2). Kuala Lumpur: Jade Green Publications, 2006.
MLA (9th ed.) CitationLena Abdullah and Magdalene Lai. A Step-by-step Maths Problem Solving Guide 3: Linear Inequalities, Linear Equations Ii,polygons Ii (book 2). Jade Green Publications, 2006.
Warning: These citations may not always be 100% accurate.