Mahammadjonov Sodirjon Nurmuhammad o`g`li, Xabibullayev Diyorbek Sherzodjon o`g`li, and Isaqov Husanboy Zokirjon o`g`li. “DUNYODAGI DEMOGRAFIK MUAMMOLAR”. Journal of New Century Innovations, vol. 22, no. 3, Feb. 2023, pp. 14-15, https://newjournal.org/new/article/view/3371.