Chris Whitehouse
Andin Hadiyanto
United States. Advisory Commission on Intergovernmental Relations.
Marcin Burzec
Channing Arndt
United States. Congress. Senate. Committee on Finance
Netherlands. Commissie ter Bestudering van de Fiscale Controlemiddelen
Roberto Nogueira Ferreira
Jorge Valdez Montoya
Christian Aste M.
Dalton Cesar Cordeiro de Miranda
United States. Office of Revenue Sharing.
Alfredo Cuevas
Abdul Ghofur Anshori
United States. Congress. House. Committee on the Budget.
Thomas J. Figueira
Joint Tax Program of the Organization of American States and the Inter-American Development Bank.
Frank Peter Schuster
Robert A. Cooke
Orestis Schinas