British Institute of Management.
Jonas Karlsson
Anna Molin
Australia. Dept. of Customs and Excise.
Nelson Abrão
Carla Biraghi
Federico R. Highton
Osmar José Martins
Albert Stern
Pedro Federico Gutiérrez
Vietnam. Tổng cục thuế
Salvador Darío Bergel
J. E. de Carvalho Pacheco
A. R. Dalmasio
Salvador Darío Bergel
Hungary. Pénzügyminisztérium.
Rüknettin Kumkale
Juan Verrina
Brazil