I'm selling this book : Foundations of Computer Science, second edition , Behrouz Forouzan & Firouz Mosharraf, ISBN - 13: 978 - 1 - 84480 - 700 - 0 for R300 (negotiable).you can call me on this number 078 196 9809 or email me at 43541313@mylife.unisa.ac.za