Lena Abdullah & Lai, M. (2006). A step-by-step Maths problem solving guide 3: Scale drawings, transformations ii, solid geometry iii, trigonometry (book 4). Jade Green Publications.
Chicago Style (17th ed.) CitationLena Abdullah and Magdalene Lai. A Step-by-step Maths Problem Solving Guide 3: Scale Drawings, Transformations Ii, Solid Geometry Iii, Trigonometry (book 4). Kuala Lumpur: Jade Green Publications, 2006.
MLA (9th ed.) CitationLena Abdullah and Magdalene Lai. A Step-by-step Maths Problem Solving Guide 3: Scale Drawings, Transformations Ii, Solid Geometry Iii, Trigonometry (book 4). Jade Green Publications, 2006.
Warning: These citations may not always be 100% accurate.