text: [3] Chakravarti, Balaram. A Cultural History of Bhutan 1. Hilltop. 1979: 7 [2014-09-13]. （原始內容存檔於2020-09-29）. Taylor, Isaac. Names and Their Histories; a Handbook of Historical Geography and Topographical Nomenclature. Gale Research Co. (Detroit), 1898. Accessed 24 September 2011.