Gercheva, S. The Tax-Based Own Resources and Ecological Sustainability of the EU Budget. Varna: Union of Scientists - Varna, 2020 с. 136-144, ISSN 1314-7390 (рrint) ; 2603-4085 (online).
Gercheva, S. The Tax-Based Own Resources and Ecological Sustainability of the EU Budget. Varna: Union of Scientists - Varna, 2020 с. 136-144, ISSN 1314-7390 (рrint) ; 2603-4085 (online).
Gercheva, S. (2020) The Tax-Based Own Resources and Ecological Sustainability of the EU Budget, Varna: Union of Scientists - Varna с. 136-144, ISSN 1314-7390 (рrint) ; 2603-4085 (online).
Gercheva, S. (2020). The Tax-Based Own Resources and Ecological Sustainability of the EU Budget. Varna: Union of Scientists - Varna, с. 136-144.
Gercheva S. The Tax-Based Own Resources and Ecological Sustainability of the EU Budget. Varna: Union of Scientists - Varna; 2020. p. с. 136-144. ISBN: ISSN 1314-7390 (рrint) ; 2603-4085 (online).