Oydinov, M. X. o‘g‘li, and R. X. o‘g‘li Oydinov. “MAHALLIY KAOLIN ASOSIDA OLINGAN Na-A SEOLITINING FIZIK-KIMYOVIY ANALIZ TAHLILI”. Educational Research in Universal Sciences, vol. 2, no. 5 SPECIAL, June 2023, pp. 206-11, http://erus.uz/index.php/er/article/view/3113.