Kamilov X.X., and To’raxanov S.I. “PORTLANDSEMENTNING XOSSALARIGA KIMYOVIY QO’SHIMCHALAR TASIRI”. Journal of Academic Research and Trends in Educational Sciences (December 9, 2023): 256–260. Accessed July 3, 2024. http://ijournal.uz/index.php/jartes/article/view/831.