Jha, P. K. (1985). History of Sikkim 1817-1904: Analysis of British policy and activities. OPS Pubs.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रJha, Pranab Kumar. History of Sikkim 1817-1904: Analysis of British Policy and Activities. OPS Pubs, 1985.
एमएलए (9वां संस्करण) प्रशस्ति पत्रJha, Pranab Kumar. History of Sikkim 1817-1904: Analysis of British Policy and Activities. OPS Pubs, 1985.
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