Hussein Ali Al Sarabi, Prof. Alaa, and Prof. Adib bin Abdullah Al-Khalil. 2021. “The Role of Sales Promotion Methods in Increasing Occupancy in Five-Star Hotels”. Baghdad College of Economic Sciences University Journal (BCESUJ) 63 (1):265-81. https://bcuj.baghdadcollege.edu.iq/index.php/BCESUJ/article/view/181.