Phong, Thanh Nguyen and Herman, Herman and Quyen Le Hoang, Thuy To Nguyen and I Wayan, Suparta and Bich Huynh, Vy Dang Cleanliness Assessment of Sub-District in Regency Using Technique for Order Preference by Similarity to Ideal Solution. Internasional Journal Opcion Revista de Ciencias Humanas y Sociales, Department of Economic and Development Studies, Faculty of Economic and Business University of Lampung.