Abbasi, M. U.-H., & Sarma, S. R. (2018). An Astrolabe by Muhammad Muqim of Lahore Dated 1047 AH (1637–38 CE). ISLAMIC STUDIES, 53(1-2). Retrieved from http://irigs.iiu.edu.pk:64447/ojs/index.php/islamicstudies/article/view/178