GLUKHOVA, V.I.; DARIBEKOV, S.S.; DARIBEKOVA, A.S.; MAMBETOVA, S.Sh.; YESKEROVA, Z.A. The shadow economy: concept and evaluation. BUKETOV BUSINESS REVIEW, [S. l.], v. 98, n. 2, p. 53–64, 2020. DOI: 10.31489/2020ec2/53-64. Disponível em: https://bbr.buketov.edu.kz/economy-vestnik/article/view/236. Acesso em: 7 dec. 2025.