Axmadjonova Gulshoda Adixamjon qizi. “PAXTA TARKIBIDAGI OG’IR ARALASHMALARNI TUTIB QOLUVCHI TOSH TUTGICH QURILMALARI TAVSIFI”. Research Focus International Scientific Journal, vol. 2, no. 7, Aug. 2023, pp. 8-11, https://refocus.uz/index.php/1/article/view/407.