SUSTAINABLE PRACTICES IN THE PRESERVATION OF CULTURAL HERITAGE AT THE “ST. ST. CYRIL AND METHODIUS” NATIONAL LIBRARY OF BULGARIA. Bulletin of Armenian Libraries, [S. l.], v. 7, n. 2, p. 10–13, 2024. DOI: 10.52027/. Disponível em: https://journal.nla.am/index.php/banber/article/view/73. Acesso em: 29 jul. 2025.