"Code page 1281 information document". Archived from the original on 2016-03-16. https://web.archive.org/web/20160316232740/http://www-01.ibm.com/software/globalization/cp/cp01281.html
"CCSID 1281 information document". Archived from the original on 2016-03-26. https://web.archive.org/web/20160326203031/http://www-01.ibm.com/software/globalization/ccsid/ccsid1281.html
Apple Computer (2005-04-05). "TURKISH.TXT". The Unicode Consortium. https://www.unicode.org/Public/MAPPINGS/VENDORS/APPLE/TURKISH.TXT
Code Page CPGID 01281 (pdf) (PDF), IBM https://public.dhe.ibm.com/software/globalization/gcoc/attachments/CP01281.pdf
Code Page CPGID 01281 (txt), IBM https://public.dhe.ibm.com/software/globalization/gcoc/attachments/CP01281.txt
International Components for Unicode (ICU), macos-35-10.2.ucm, 2003-02-20 https://github.com/unicode-org/icu/blob/master/icu4c/source/data/mappings/macos-35-10.2.ucm