↑ Crist, Walter; Vaturi, Anne (2014). "Board games in antiquity". Encyclopaedia of the history of science, technology, and medicine in non-Western cultures. Springer, Dordrecht. doi:10.1007/978-94-007-3934-5_9836-1.
↑ Parlett, David (1999). Oxford history of board games. Oxford University Press. pp. 5–6. ISBN978-0192129987.
