TKACH, D.; TKACH, D. Petro Danylovych Sardachuk: A Diplomat Devoted to Serving Ukraine. Problems of World History, [S. l.], n. 31, p. 209–218, 2025. DOI: 10.46869/2707-6776-2025-31-14. Disponível em: https://journal.ivinas.gov.ua/pwh/article/view/373. Acesso em: 4 jun. 2026.