No.	Title	Date
1	Census of Bangkok by order of Siamese government, 1828
2	Letter from Karl Friedrich August Gützlaff, 26 June 1829, Bankok [Bangkok]
3	Letter from Karl Friedrich August Gützlaff, 14 July 1829, Bangkok
4	Letter from Karl Friedrich August Gützlaff, 01 April 1831, Bangkok
5	Letter dated August 1831, Bangkok