Abu-Naser, Samy S.; Dawoud, Ahmed M.; Al Sheik Ali, Khaled M.
(JMESS, 2016)
The mobile phone market which was 4.08 billion users worldwide in 2012 grew by 6.3% in 2013 to 4.32 billion users. The mobile market grew by 5.1% to 4.55 billion users in 2014 and expected to grew more in next a few ...