DERI YARDIANSYAH; SOLEH, A.; HERLINA, Y. Opportunities And Challenges For Security Education And Training Companies Case Study : PT. Doa Group Indonesia. Jurnal Ekonomi, Manajemen, Bisnis dan Akuntansi, [S. l.], v. 2, n. 1, p. 21–28, 2025. DOI: 10.37676/jemba.v2i1.728. Disponível em: http://jurnalunived.com/index.php/EMBA/article/view/728. Acesso em: 27 oct. 2025.