แหล่งที่มา WikiPedia: มณฑลชานตง http://www.chinadaily.com.cn/bizchina/2012-12/19/c... http://english.mofcom.gov.cn/article/zt_business/l... http://www.sd.gov.cn/ http://www.shandong.gov.cn/ http://www.stats-sd.gov.cn/art/2018/2/28/art_6196_... http://data.stats.gov.cn/english/easyquery.htm?cn=... http://info.hktdc.com/mktprof/china/Shandong.htm //tools.wmflabs.org/geohack/geohack.php?pagename=%... https://hdi.globaldatalab.org/areadata/shdi/
