ug’li, Toshmurodov Dostonjon Asatullo, Jalilov Mustafo Uzakovich, and Baykulov Azim Kenjayevich. 2022. “Study of Changes in Calciferol in Eggs in Depending on the Season of the Year”. Middle European Scientific Bulletin 24 (May):310-14. https://cejsr.academicjournal.io/index.php/journal/article/view/1328.