Marsden, W. 1784. The history of Sumatra: Containing an account of the government, laws, customs and manners of the native inhabitants, with a description of the natural productions, and a relation of the ancient political state of that island (2nd Ed.) London, UK: Thomas Payne & Son.
https://archive.org/details/historysumatrac01marsgoog/mode/1up
@book{marsden1784, address = {London, UK}, author = {Marsden, W.}, publisher = {Thomas Payne & Son}, title = {The history of Sumatra: Containing an account of the government, laws, customs and manners of the native inhabitants, with a description of the natural productions, and a relation of the ancient political state of that island (2nd Ed.)}, url = {https://archive.org/details/historysumatrac01marsgoog/mode/1up}, year = {1784} }