United Nations Model Double Taxation Convention between Developed and Developing Countries : brief summary of articles : note / by the Secretariat
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English:E_C.18_2012_3-EN - PDF ; Español:E_C.18_2012_3-ES - PDF ; Français:E_C.18_2012_3-FR - PDF ; Русский:E_C.18_2012_3-RU - PDF ; العربية:E_C.18_2012_3-AR - PDF ; 中文:E_C.18_2012_3-ZH - PDF ;