Zainun, H. A. (2000). A study on customer preference towards cellular services offered by Telekom Malaysia and its subsidiaries in Ipoh Central town / Hisham Azlin Zainun.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Zainun, Hisham Azlin. A Study on Customer Preference Towards Cellular Services Offered by Telekom Malaysia and Its Subsidiaries in Ipoh Central Town / Hisham Azlin Zainun. 2000.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Zainun, Hisham Azlin. A Study on Customer Preference Towards Cellular Services Offered by Telekom Malaysia and Its Subsidiaries in Ipoh Central Town / Hisham Azlin Zainun. 2000.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.