Kya.Lau Too Accountancy mathematics for UITM (3rd ed) Lau Too Kya, Phang Yook Ngor, Wee Kok Kiang - 3rd ed - Selangor, Malaysia: Oxford Fajar Sdn Bhd., 2009. ISBN: 9789834505080 LC Class. No.: HF5691 / .L38 2009