Impact of marketing costs and the research and development on the profitability of Egypt's pharmaceutical companies
Abdo, B., Aboubakr, W. (2019). Impact of marketing costs and the research and development on the profitability of Egypt's pharmaceutical companies. EKB Journal Management System, 1(العدد الثانى), 40-69. doi: 10.21608/sjar.2019.110146
Bassant Badr Eldin Abdo Abdo; Walid Aboubakr Aboubakr. "Impact of marketing costs and the research and development on the profitability of Egypt's pharmaceutical companies". EKB Journal Management System, 1, العدد الثانى, 2019, 40-69. doi: 10.21608/sjar.2019.110146
Abdo, B., Aboubakr, W. (2019). 'Impact of marketing costs and the research and development on the profitability of Egypt's pharmaceutical companies', EKB Journal Management System, 1(العدد الثانى), pp. 40-69. doi: 10.21608/sjar.2019.110146
Abdo, B., Aboubakr, W. Impact of marketing costs and the research and development on the profitability of Egypt's pharmaceutical companies. EKB Journal Management System, 2019; 1(العدد الثانى): 40-69. doi: 10.21608/sjar.2019.110146