Saijai Lorpensri และผู้แต่งคนอื่นๆ. (2021) Guidelines of architectural conservation for ecotourism A case study of Sobkorn Tobacco Incubation Plant Chiang Klang District, Nan Province. Rangsit University:ม.ป.ท.Saijai Lorpensri และผู้แต่งคนอื่นๆ. 2021. Guidelines of architectural conservation for ecotourism A case study of Sobkorn Tobacco Incubation Plant Chiang Klang District, Nan Province. ม.ป.ท.:Rangsit University;Saijai Lorpensri และผู้แต่งคนอื่นๆ. Guidelines of architectural conservation for ecotourism A case study of Sobkorn Tobacco Incubation Plant Chiang Klang District, Nan Province. ม.ป.ท.:Rangsit University, 2021. Print.