Nguyen, Phu Tho, Bac Giang).3.1.3- Social featuresThe
Northern mountainous midland provinces is largely inhabited by ethnicminoritiesin our country (more than 30 different ethnic groups), including notably the ethnicThai, Tay,Nung, Muong, H .Mong, Knives, Khomu, Resistance, Giay ... Unless th[r]