Othman, B. A. (2020). The influence of service marketing mix and umrah service quality on customer satisfaction and customer loyalty towards umrah travel agents in Malaysia.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Othman, Bestoon Abdulmaged. The Influence of Service Marketing Mix and Umrah Service Quality on Customer Satisfaction and Customer Loyalty Towards Umrah Travel Agents in Malaysia. 2020.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Othman, Bestoon Abdulmaged. The Influence of Service Marketing Mix and Umrah Service Quality on Customer Satisfaction and Customer Loyalty Towards Umrah Travel Agents in Malaysia. 2020.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.