EN中文
SPATIAL-TEMPORAL PATTERN AND INFLUENCING FACTORS OF COMPREHENSIVE DEVELOPMENT LEVEL OF PRODUCER SERVICES IN THE YELLOW RIVER BASIN
LI Jiang-su, MENG Lin-lin, LI Wei-hua, LI Xiao-jian
HUMAN GEOGRAPHY . 2023, (2): 116 -125 .  DOI: 10.13959/j.issn.1003-2398.2023.02.014