Khan, Mir Hassan, and M. Subhan Qureshi. “DEVELOPMENT OF ENZYME IMMUNOASSAY AND ITS ROLE IN REPRODUCTIVE ENDOCRINOLOGY”. Journal of Ayub Medical College Abbottabad, vol. 6, no. 1, Feb. 1993, https://www.jamc.ayubmed.edu.pk/index.php/jamc/article/view/4739.