Ratthasāt thūapai
By: Banphot Wīrasai, Sukhum Nūansakun, Bō̜wō̜n Praphrưtdī.
Edition: Phim khrang thī 4.
Publisher: Mahāwitthayālai Rāmkhamhǣng
Published: 1977
Place of publication: [Bangkok]
Language: tha
Number of pages: 415
Notes: In Thai.