Chongpet Janla และ Renliang Li. (2019) The creation of trust culture in the organization of food cluster in Chiang Rai province. National Institute of Development Administration:ม.ป.ท.Chongpet Janla และ Renliang Li. 2019. The creation of trust culture in the organization of food cluster in Chiang Rai province. ม.ป.ท.:National Institute of Development Administration;Chongpet Janla และ Renliang Li. The creation of trust culture in the organization of food cluster in Chiang Rai province. ม.ป.ท.:National Institute of Development Administration, 2019. Print.