Serirangsan, Thirapat. “The Mix of Four Regimes: Monarchy, Bureaucratic Polity, Plutocracy, and Democracy”. King Prajadhipok’s Institute Journal 16, no. 1 (August 10, 2020): 5–21. Accessed March 29, 2024. https://so06.tci-thaijo.org/index.php/kpi_journal/article/view/243793.