Royal Audit Authority. Auditor general's advisory series : review on government procurement system / - Thimphu, Bhutan : Royal Audit Authority, November 2021. - 31 p. : ill. ; 25 cm. ISBN: 9789993618973 LC Class. No.: GD00456-GD00457 Dewey Class. No.: A9.4 / RAA Gov. Doc. Class. No.: A9.4