Arjun Adlakha (1997). "Population Trends: India"(PDF). International brief. U.S. Department of Commerce. hlm. 5. Diakses tanggal 4 November 2008.Parameter |month= yang tidak diketahui akan diabaikan (bantuan)
"Physical Features of Sikkim". Department of Information and Public Relations, Government of Sikkim. 29 September 2005. Diarsipkan dari versi asli tanggal 2006-07-02. Diakses tanggal 12 October 2006.
"Physical Features of Sikkim". Department of Information and Public Relations, Government of Sikkim. 29 September 2005. Diarsipkan dari versi asli tanggal 2006-07-02. Diakses tanggal 12 October 2006.