National Statistics Bureau. 2017 Population & housing census of Bhutan : Sarpang dzongkhag / - Thimphu, Bhutan : National Statistics Bureau of Bhutan, c2018. - viii, 67 p. : : ill. (some col. graphs) ; 24 cm. ISBN: 9789993628637 LC Class. No.: GD00153 Dewey Class. No.: A5.6 / NSB Gov. Doc. Class. No.: A5.6