1.
Valkova R. Innovations in Economics Training in the First and Second High School Stage of Secondary Education in Profiled Secondary Schools and Vocational High Schools – Essential Methods and Tools. НТ [Internet]. 2024 Jul. 5 [cited 2026 Jul. 22];(1):219-2. Available from: https://bjiep.e-dnrs.org/index.php/rp/article/view/5103