Enver, Ishrat Hasan. The metaphysics of Iqbal / Ishrat Hasan Enver ; Hassan, Syed Zafarul - Rev. ed. - Lahore : Muhammad Ashraf, 1955 [Reprinted 1963]. - xii, 105 p. ; 21 cm. Includes bibliographical references and index. Subjects--Personal Names: Iqbal, Muhammad, Sir, 1877-1938. Dewey Class. No.: 110 / ENM 1963