Bassett, D.K. (September 1970). "Pioneering in the Far East and Journeys to California in 1849 and to the White Sea in 1878". Journal of Southeast Asian Studies. 1 (2): 145. doi:10.1017/S0022463400020427.
Bassett, D.K. (September 1970). "Pioneering in the Far East and Journeys to California in 1849 and to the White Sea in 1878". Journal of Southeast Asian Studies. 1 (2): 145. doi:10.1017/S0022463400020427.