Abdul – Hameed, T. A. (2015). An Appraisal of GSM Telecommunications Services Delivery in Lagos and Oyo States of Nigeria.
Cita Chicago (17th ed.)Abdul – Hameed, Taofeek Adekunle. An Appraisal of GSM Telecommunications Services Delivery in Lagos and Oyo States of Nigeria. 2015.
Cita MLA (9th ed.)Abdul – Hameed, Taofeek Adekunle. An Appraisal of GSM Telecommunications Services Delivery in Lagos and Oyo States of Nigeria. 2015.
Atenció: Aquestes cites poden no estar 100% correctes.