Bromberg, P. “Siamese Coins: From Funan to the Fifth Reign by Ronachai Krisadaolarn and Vasilijs Mihailovs”. The Journal of the Siam Society, vol. 101, Nov. 2013, pp. 270-3, https://so06.tci-thaijo.org/index.php/pub_jss/article/view/158475.