Makhsumkhanov Rahmatkhan Ahmadjonovich. “ABU HAFS NASAFI SCIENTIFIC MEROSINING DEGREE OF STUDY”. EPRA International Journal of Multidisciplinary Research (IJMR), vol. 8, no. 12, Dec. 2022, pp. 151-6, https://eprajournals.net/index.php/IJMR/article/view/1291.