Evaluation of Public Special School Environment (case: SLB Negeri Ungaran) Bangun I.R. Harsritanto, Dessy Oktavia, Mira Annisa Rezeki and Hermin Werdiningsih E3S Web Conf., 202 (2020) 07044 Published online: 10 November 2020 DOI: 10.1051/e3sconf/202020207044