BAL, Mustafa; BAL, Müjgan - International Institute of Social and Economic Sciences - 2015
mobile communication and making those more attractive by social media influences the success of GSM operators. It is thought …, is seen advantageous in terms of public relations and been used actively as well. That is why GSM operators are using … of three leading GSM operators of Turkey providing mobile communication, Avea, Turkcell and Vodafone are examined …