KHAN, A.; KHAN, H. Return to Schooling for Public and Private Sector Higher Education Institutions of Khyber Pakhtunkhwa-Pakistan. International Journal of Economics and Financial Issues, [S. l.], v. 10, n. 4, p. 125–131, 2020. Disponível em: https://www.econjournals.com/index.php/ijefi/article/view/10004. Acesso em: 21 may. 2022.