Nanrum, S. “Viewpoint of Siamese Elite in King Taksin the Great of Rattanakosin Period (A.D. 1782-1932)”. Parichart Journal, vol. 32, no. 2, Dec. 2019, pp. 14-25, https://so05.tci-thaijo.org/index.php/parichartjournal/article/view/122582.