1. Chemicals Evaluation and Research Institute. 2008. A 180-Day Repeated Dose Oral Toxicity Study of ETBE in Rats. Testing laboratory: Hita Laboratory, Chemicals Evaluation and Research Institute, 3-822, Ishii-cho, Hita-shi Oita 877-0061, Japan. Report no. D19-0002.
2. ECHA (European Chemicals Agency). 2008. Guidance on Information Requirements and Chemical Safety Assessment. Chapter R.8: Characterisation of Dose [concentration]-Response for Human Health. (Helsinki, Finland).