TEXT MINING AND QUANTITATIVE EVALUATION OF ECOLOGICAL PROTECTION POLICIES OF YANGTZE RIVER ECONOMIC ZONE: BASED ON TOPSIS-PMC INDEX MODEL
ZHANG Hua, LIU Ning, LI Huajiao
Resources & Industries . 2025, (3): 136 -148 .  DOI: 10.13776/j.cnki.resourcesindustries.20250225.002

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