Tonkova, Evgenia Georgieva, Hristova, Sevdalina Ivanova, Petrov, Dancho Hristov Marketing Approaches to Attract Investments in Municipalities,
Bucharest University of Economics Studies, 2017, pp. 222 - 229, ISSN/ISSN-L 2537-5865 ; ISBN 978-606-34-01108-4.