Yuldashev Toshmurza Rakhmanovich, et al. “CONDUCTING RESEARCH ON PRODUCTION OF LIQUEFIED HYDROCARBONS FROM PETROLEUM GASES”. International Journal of Innovations in Engineering Research and Technology, vol. 8, no. 04, Apr. 2021, pp. 131-3, https://repo.ijiert.org/index.php/ijiert/article/view/2438.