Tài liệu tham khảo WikiPedia: Ninh_Lạng http://www.lijiang.gov.cn http://www.ljs.gov.cn/ http://www.ljs.gov.cn/pubnews/doc/index/ljnl/index... //tools.wmflabs.org/geohack/geohack.php?language=v... https://web.archive.org/web/20090107064223/http://... https://commons.wikimedia.org/wiki/Category:Ningla...
