FATIMA ZAIN; ZAFAR MANZOOR; DR. AZMA BATOOL. CORRUPTION AND THE SHADOW ECONOMY: COMPLEMENT OR SUBSTITUTE? EVIDENCE ACROSS INCOME GROUPS. JOURNAL OF SOCIAL RESEARCH DEVELOPMENT, [S. l.], v. 7, n. 6, p. 364–388, 2026. DOI: 10.59075/jsrd.v7i6.566. Disponível em: https://www.jsrd.org.pk/index.php/jsrd/article/view/566. Acesso em: 13 oct. 2026.