fuwongcharoen, puli. “The Revolution of 1932 in the Eyes of ‘outsiders’ Diplomatic Documents Concerning Siam After the Fall of the Old Regime”. King Prajadhipok’s Institute Journal, vol. 14, no. 2, Aug. 2020, pp. 47-62, https://so06.tci-thaijo.org/index.php/kpi_journal/article/view/244166.