Columbia subject headings:
Feudalism--Thailand.
Thailand--Historiography.
Thailand--History.
Čhit Phūmisak.
Harvard subject headings:
Feudalism--Thailand.
Thailand--Civilization.
Čhit Phūmisak. Chōmnā sakdinā Thai.
Princeton subject headings:
Čhit Phūmisak.
Feudalism--Thailand.
Thailand--Historiography.
Thailand--History--Coup d'état, 1976.