International Merchandise Trade Statistics (IMTS) (Compilers Manual, United Nations, New York, USA 2004);

International Merchandise Trade Statistics (IMTS), (Concepts and Definitions, United Nations, New York USA 2011);

"International Merchandise Trade Statistics: Compilers Manual, Revision 1" (IMTS 2010-CM)), (United Nations, New York, USA 2013);

“Balance of Payments Manual” (BPM5) (International Monetary Fund, Washington D.C., USA, 1993., Fifth Edition);

“Balance of Payments and International Investments Position Manual” (BPM6) (International Monetary Fund, Washington D.C., USA, 2008., Sixth Edition);

“Benchmark Definition of Foreign Direct Investment” (Organization for Economic Co-operation and Development, Paris, France, 2008., 4th Edition);

“The Coordinated Direct Investment Survey Guide” (International Monetary Fund, Washington D.C., USA, 2015);

“External Debt Statistics” (Eurostat, International Monetary Fund, World Bank, United Nations Conference on Trade and Development, Washington D.C., USA, 2003).

“Brief Methodology and Practice of External Merchandise Trade Statistics in Georgia"

“Brief Methodology and Practice of Calculation of Foreign Direct Investments (FDI) in Georgia"