SHAHZAD, Khuram; JEHANDAD, Arbab Muhammad; FATIMA, Kaneez. Proxy (Indirect) Methods to Measure Informal Economy of Pakistan (2001–2025): A Comparative Study. American Journal of Applied Statistics and Economics, Delaware, USA, v. 5, n. 2, p. 19–30, 2026. DOI: 10.54536/ajase.v5i2.7979. Disponível em: https://journals.e-palli.com/home/index.php/ajase/article/view/7979. Acesso em: 19 aug. 2026.