Constitutional and Political History of Pakistan by Hamid Khan, published by Oxford University Press, is a definitive scholarly resource documenting the country's legal evolution from 1947 through various constitutional forms. The extensively researched 4th edition is widely utilized by legal professionals and competitive exam candidates (CSS/PMS) for its analysis of landmark cases and major constitutional shifts, including the 18th Amendment. For the comprehensive, authorized edition, visit Oxford University Press Pakistan . CONSTITUTIONAL AND POLITICAL HISTORY OF PAKISTAN