Tài liệu tham khảo WikiPedia: Đèo_Khau_Kang //tools.wmflabs.org/geohack/geohack.php?language=v... https://www.google.com/maps/@22.3129486,105.924363... https://commons.wikimedia.org/wiki/Category:Mounta... https://thuvienphapluat.vn/van-ban/Tai-nguyen-Moi-...