Ochilov , Iles Saidovich, and Kuvonchbek Mannonovich Usmonov. 2023. “CHAKILKALYAN TOG‘LARI AKBA MAYDONI APOKARBONAT OLTIN MA’DANLARINING MINERAL TARKIBI”. Educational Research in Universal Sciences 2 (10):325-31. http://erus.uz/index.php/er/article/view/4194.