Abu Zarim, Z. (2004). Competency-Based Training and Work Performance of the Sales Workforce in a Telecommunication Company.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Abu Zarim, Zainal. Competency-Based Training and Work Performance of the Sales Workforce in a Telecommunication Company. 2004.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Abu Zarim, Zainal. Competency-Based Training and Work Performance of the Sales Workforce in a Telecommunication Company. 2004.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.