Alam, M. Afshar creator Padenga ,Tendai xxu 2010 Pearson eng Online book Software evolution Software design and software evaluation techniques Open software evolution 9788131742143 http://lib.myilibrary.com/Open.aspx?id=266302 http://lib.myilibrary.com/Open.aspx?id=266302 150504 20150504160022.0