أنشئ حسابًا أو سجّل الدخول للانضمام إلى مجتمعك المهني.
yes
in my experience yes
we have been subjected to the World Bank Guidelines
United Nation Procurement Policy
contributed to develop SUDAN Procurement Procedures and Assets Disposal
Please check below Link for info.
http://wiki.answers.com/Q/What_is_purchasing_function#slide1