TY - CPAPER AU - Maya Vasileva TI - FORMING A SYSTEM OF CARTOGRAPHIC CONCEPTS IN THE GEOGRAPHY TRAINING IN THE BULGARIAN SECONDARY SCHOOL T2 - SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 21st SGEM International Multidisciplinary Scientific GeoConference Proceedings 2021, Ecology, Economics, Education and Legislation PY - 2021 SP - 565 EP - 572 DO - 10.5593/sgem2021/5.1/s22.121 PB - STEF92 Technology ER -