Elementary and Lower Secondary Department of Special Needs Education School Curriculum Guideline 2017-04 Notification
特別支援学校小学部・中学部学習指導要領 2017年4月 告示
Reference
"Notification No. 73 in 2017 of the Ministry of Education, Culture, Sports, Science and Technology" (Official Gazette, 2017-04-28, Extra Edition No. 93, pp.22-101)