Karma Ura and Dorji Penjor : Gross national Happiness : Practice and Measurement / Dasho Karma Ura and Dorji Penjor. - Bhutan : Centre for Bhutan Studies, 2009. - XXIII, 695 p. : 23 cm. ISBN: 9789993614524 Dewey Class. No.: 338.9 / KAR