Choosak Choosri และ Suwaree Namwong. (2016) A zero waste management model for small hotels: a case study in the Koh Samui, Koh Pha Ngan Surat Thani. National Institute of Development Administration:ม.ป.ท.Choosak Choosri และ Suwaree Namwong. 2016. A zero waste management model for small hotels: a case study in the Koh Samui, Koh Pha Ngan Surat Thani. ม.ป.ท.:National Institute of Development Administration;Choosak Choosri และ Suwaree Namwong. A zero waste management model for small hotels: a case study in the Koh Samui, Koh Pha Ngan Surat Thani. ม.ป.ท.:National Institute of Development Administration, 2016. Print.