PENCHEV, Bonimir. A Study On The Usage Of M-Learning Applications Within Bulgarian Schools. Business & Management Compass, Varna, Bulgaria, v. 68, n. 1, p. 45–53, 2024. DOI: 10.56065/y0yzs296. Disponível em: https://bi.ue-varna.bg/ojs/index.php/bmc/article/view/27.. Acesso em: 20 may. 2024.