2026. GAZ QUVURLARI UCHUN BITUM ASOSIDAGI MASTIK QOPLAMALARNING FIZIK-KIMYOVIY XOSSALARI. Scientific journal of the Fergana State University. 31, 3 (Jan. 2026), 179. DOI:https://doi.org/10.56292/SJFSU/vol31_iss3/a179.