Phāsā Thai khō̜ng rao
Subtitle: tūang thī chai phit dūai withī lō̜lǣm
By: ʻOp Chaiwasu.
Publisher: Samnakphim Kāonā
Published: 1962
Place of publication: Phra Nakhō̜n
Language: tha
Number of pages: 464
Description: On correct Thai written usage.
Notes: In Thai.