L. Sdrolias

Cooperative Strategies of Entry to the International Market between the Greek Enterprises

N. Pappas, S. Polyzos, L. Sdrolias, 2006 .

Customer Relationship Management and Social Media in Greek Tourism

D. Belias, A. Koustelios, C. Mantas, 2017, Strategic Innovative Marketing.

Τhe use of digital CRM in the operation of Greek Hotels

A. Koustelios, D. Kyriakou, E. Velissariou, 2017 .