Ratthasāt 21
Subtitle: khō̦pkhēt læ naeothang nai kansuʼksa wicha Ratthasāt
By: Khanachan Khana Ratthasāt.
Contributors: Mahāwitthayālai Thammasāt. Khana Rattasāt.
Publisher: Khanachan Khana Ratthasāt, Mahāwitthayālai Thammasāt
Published: 1978
Place of publication: [Bangkok]
Language: tha
Number of pages: 246
Other titles: Ratthasāt Yisipʻet
Notes: In Thai.