Dr Amr Hassan Kheir-El-Din, "The Contribution of Marketing to Competitive Success" , in Perspective on Marketing Management, John Wiley & Sons, 1991. , 1991
Dr. Amr Hassan Kheir-El-Din, "The Contribution of Marketing to Competitive Success" , in Perspectives on Marketing Management, John Wiley & Sons, 1991. , 1991.