1. Svetlozar Stoyanov (Bulgaria) - NOTES TO MARKETING CHANNELS AND THE CONCEPT OF A SUPPLY CHAIN.

2. Svetlozar Stoyanov (Bulgaria), Plamen Dyankov (Bulgaria) - LOGISTIC DIRECTION OF THE ORGANIZATION OF TRANSPORTATION WITH DIFFERENT TYPES OF TRANSPORT IN INDUSTRIAL PRODUCTION PROCESSES 

3. Plamen Ivanov (Bulgaria) - OBJECTIVE PRECONDITIONS FOR ADVANCE OF SOCIAL WORK AS A SCIENCE

4. Nevena Krachmarova (Bulgaria) - FORMATION OF MATHEMATICAL REPRESENTATIONS IN CHILDREN FROM THE FOURTH GROUP IN THE KINDERGARTEN AND OBSERVATION OF THE RESULTS

5. Veselina Ivanova (Bulgaria) - THE IMPACT OF COVID-19 ON UNEMPLOYMENT LEVELS IN BULGARIA

6. Zlatina Ivanova (Bulgaria) - FORMATION OF IDEAS AND CONCEPTS IN SIX TO SEVEN YEAR OLD CHILDREN ABOUT PETS

7. Milena Paseva (Bulgaria) - EFFICIENCY OF THE EXPERIMENTAL MODEL FOR INTEGRATED EDUCATION IN MATHEMATICS AND ENVIRONMENT IN THE FOURTH AGE GROUP IN KINDERGARTEN WITH THE USE OF INTERACTIVE WHITE BOARD AND THE STEAM METHOD

8. Veselina Vasilev (Bulgaria), Kostadin Kostadinov (Bulgaria) - ILLICIT TRADE OF CULTURAL HERITAGE IN BULGARIA 

9. Veselina Vasilev (Bulgaria), Kostadin Kostadinov (Bulgaria) - TURKISH INFLUENCE IN MACEDONIA

10. Maksym Prykhnenko (Ukraine), Babii Daria (Ukraine) - IDENTITY PROBLEM IN THE CONTEXT OF EU DEVELOPMENT AT THE CURRENT STAGE

11. Dragomir Vasilev (Bulgarioa) - ANTENNA SYSTEM CALCULATION

12. Yuliyana Panova (Bulgaria) - BLENDED LEARNING - AN INNOVATIVE TECHNOLOGY IN STUDENT EDUCATION IN CHORAL SINGING AND CONDUCTING IN AN ELECTRONIC ENVIRONMENT

13. Viktoriya Kovchazova (Bulgaria) - THEATRICAL PLAY ACTIVITIES IN PRESCHOOL AGE

14. Viktoriya Kovchazova (Bulgaria) - ASPECTS OF THE ROLE-PLAYING IN THE PRESCHOOL AGE