International Manuals

UN (2013) International Merchandise Trade Statistics: Compilers Manual, Revision 1
UN (2016) Manual on Statistics of International Trade in Services 2010 Compiler’s Guide
EUROSTAT (2017) Compilers Guide for statistics on Services Trade by Enterprise Characteristics (STEC)
EUROSTAT (2020) Compilers guide on European statistics on international trade in goods by enterprise characteristics (TEC)

Other relevant documents

UNSD (2015) Results of Global Survey on Linking Trade Statistics to Statistical Business Register

OECD (2016) Statistical Insights: Who's Who in International Trade: A Spotlight on OECD Trade by Enterprise Characteristics Data