Tashi Penjor และ Carl Nigel Middleton. (2012) The policy debate between poverty reduction and environmental protection in Bhutan : a case study of Shingkhar-Gorgan Road in Lhuntse District. Chulalongkorn University:ม.ป.ท.Tashi Penjor และ Carl Nigel Middleton. 2012. The policy debate between poverty reduction and environmental protection in Bhutan : a case study of Shingkhar-Gorgan Road in Lhuntse District. ม.ป.ท.:Chulalongkorn University;Tashi Penjor และ Carl Nigel Middleton. The policy debate between poverty reduction and environmental protection in Bhutan : a case study of Shingkhar-Gorgan Road in Lhuntse District. ม.ป.ท.:Chulalongkorn University, 2012. Print.