1. Guidelines: Procurement under IBRD Loans and IDA Credits, May 2004, as amended from time to time
- http://pubdocs.worldbank.org/en/828321467230376082/Procurement-GuidelinesEnglishMay2010.pdf
2. Guidelines: Selection and Employment of Consultants by World Bank Borrowers, May 2004, as amended from time to time - http://pubdocs.worldbank.org/en/299291508952559085/GuidelinesConsultants2006-revisedMay2010.doc
3. New Development Bank Procurement Policy (2018, V1), as amended from time to time - https://www.ndb.int/wp-content/uploads/2017/01/Procurement-Policy-20180302.pdf