Kovatcheva, E., (2007), the ICT instruments for Harmony in Mathematics and Arts, IFIP Conference: Education Informatics, Mathematics, and ICT: a "golden triangle", Boston, Massachusetts, USA, 27-29 June 2007

Sendova, E., Stefanova., E., Kovatcheva, E., Dobreva, M., Nikolova., (2006), How to help our students give birth to their good ideas? (Handbook in IT for Innovative Teachers), National Conference:Education in Information Society, 13-14 October 2006, Plovdiv, Bulgaria, pp., 67-72

Nikolova, I., Nikolov, R., Kovatcheva, E. (2005). e-Learning for e-Learning: Reflection on Teacher and Student Experiences in an e-Learning Course. In Proceedings, 2-nd Balkan Conference on Informatics, 17-19 Nov, 2005, Ohrid, Macedonia. pp. 211-219.

Boytcheva., S., Kovatcheva, E, (2005). Development of Adaptive e-Learning System Based on Learning Objects, In Proceedings, International Conference on E-learning , 6-7 Sept, 2005,Berlin, Germany. pp. 245-254

Boytcheva, S., Nikolov, R., Kovatcheva, E., and Nikolova, I, (2005), Case studies for Technology-Enhanced Learning in Bulgaria Higher Education, International Conference The Technology and Change in Educational Practice, 5-6 Oct 2005, London Knowledge Lab.

Nikolova, I., Luck, P., Kovatcheva, E, (2005), E-Learning for Enhancing Management Skills, In Proceedings, International Conference on E-learning, 6-7 Sept, 2005,Berlin, Germany. pp. 235-244

Kovatcheva, E., Kommers P., (2004), Web-based youth communities in the light of cyberspace psychology, International Journal of Web Based Communities (IJWBC), Vol.1 - Issue 1 – 2004, pp. 46 - 57

Kovatcheva, E., (2003), The Cyberspace impact on the Bulgarian students, International Conference on Multimedia and Information & Communication Technologies in Education, m-ICTE 2003, Badajoz, Spain, December 3-6th 2003, pp 259-262

Kovatcheva, E.,(2003), Cyberpsychology – Internet Psychology, Journal PC Magazin, 09, 2003

Kovatcheva, E.,(2003), ICT Influence on Bulgarian Students, International Congress MASSEE, 2003, Borovetc, Bulgaria, 15-21 September, 2003, pp 50-54

Kovatcheva, E., Call Centers - Development Tendencies, Journal Autonatics & Informatics, 4, 2002, pp.33-36

Kovatcheva, E.,The experience of other. Tendency to development of Call centers, National Conference - Call Centers, 17.05.2002, Sofia

Nikolov, R., Stefanov, K.,Kovatcheva, E., Stefanova, E., Centre of Excellence in Information Society Technologies the Role of the University in Capacity Building Outside the University, The Sixth International Conference on Information and Communications Technology in Public Administration ICTPA '01, 28-31.10.2001, Sinaia Romania

Dobreva, M., Kovatcheva,E., Nikolova, N., Sendova, E., Stefanova, E. (2006), The computer in my World – Handbook in Information Technologies – 5 degree, Anubis, Sofia, 2006, ISBN-10:954-426-726-3

Dobreva, M., Kovatcheva,E., Nikolova, N., Sendova, E., Stefanova, E. (2006), Teachers’ handbook, Anubis, Sofia, 2006

Kovatcheva,E., How to reach anything on the Internet? - TopTeam Co. 1999, ISBN 954-89232-08