NAUMESCU, Valentin; PETRUȚ, Diana-Nicoleta. Foreign Policy and Diplomacy. An Introduction, 2nd edition . [s.l.] : Presa Universitară Clujeană,2022. Disponível em: https://editura.ubbcluj.ro/index.php/puc/catalog/book/2849. Acesso em: 15 may. 2026.