Razzoqov Hasan Qalandarovich, Ismatov Xolmirza Maxmarajab o`g`li, and Temirova Go`zal Feruz qizi. 2024. “NEFT MAHSULOTLARI SAQLAGAN OQAVA SUVLARINING KIMYOVIY TARKIBI VA TOZALASH USULLARI”. Education News: Exploring the 21st Century 2 (20):724-29. http://nauchniyimpuls.ru/index.php/noiv/article/view/15473.