Usmonov , K. M. “FAVVORA QUDUQLARIDA ASFALTSMOLAPARAFIN TO‘PLANISHIGA QARSHI KURASHNING ISSIQLIK VA FIZIKAVIY USULLARI”. GOLDEN BRAIN, vol. 1, no. 10, Apr. 2023, pp. 84-87, https://researchedu.org/index.php/goldenbrain/article/view/3008.