1. MICE intelligence outlook trend edition;Samutsakorn,2022
2. Marketing for hospitality and tourism;Kotler,2022
3. CEM learning program: exhibition and event sales,2021
4. Galitsky B. (2020) “Artificial intelligence for customer relationship management keeping customers informed.” Cham: Springer Nature Switzerland.
5. Knowledge management, customer relationship management and innovation capacities;Migdadi;Journal of Business & Industrial Marketing,2021