“The Unicode Standard Version 12.0” (PDF) (English). The Unicode Consortium. p. 131 (2019年3月). 2019年5月12日閲覧。 “The UTF-16 encoding scheme may or may not begin with a BOM. However,when there is no BOM, and in the absence of a higher-level protocol, the byteorder of the UTF-16 encoding scheme is big-endian.”
