1. British Parliamentary Papers (BPP). 1840. No. 284, Papers relative to the execution of the treaty of 1824, by the Netherlands authorities in the East Indies.
2. British Parliamentary Papers (BPP). 1842. No. 352, Papers relative to the execution of the treaty of 1824, by the Netherland authorities in the East Indies.
3. Singapore Chronicle (SC). 1824–37.
4. Singapore Free Press (SFP). 1835–65.
5. The Straits Times and Singapore Journal of Commerce (ST). 1845–53.