Innovative PR Techniques for Non-conventional Energy Sector. Annual of Sofia University “St. Kliment Ohridski”. Faculty of Journalism and Mass Communication, [S. l.], v. 31, n. 1, 2025. DOI: 10.60060/fjmc.v31i1.1241. Disponível em: https://annual.uni-sofia.bg/index.php/fjmc/article/view/1241. Acesso em: 14 dec. 2025.