MANZOOR, Z.; AHSAN, H. Definitions and Estimation Models of Shadow Economy: A Systemic Literature Review. CARC Research in Social Sciences, [S. l.], v. 3, n. 2, p. 233–240, 2024. DOI: 10.58329/criss.v3i2.135. Disponível em: https://journals.carc.com.pk/index.php/CRISS/article/view/135. Acesso em: 5 may. 2026.