Shen Xilin, Emu Yezi, Li Yi. China Natural Gas Industry Prosperity Index in the Second Quarter of 2019[J]. 中国油气, 2019, 26(4): 56-58.
Shen Xilin, Emu Yezi, Li Yi. China Natural Gas Industry Prosperity Index in the Second Quarter of 2019. China Oil & Gas, 2019, 26(4): 56-58.