Rīan nangsư̄ Lānnā dūai tonʻēng
By: ʻInsom Chaiyachomphū.
Publisher: Rān Bunphadung
Published: 1991
Place of publication: ʻAmphœ̄ Mư̄ang, Čhangwat Chīang Rai
Language: tha
Number of pages: 46
Subjects: Thai language -- Writing.
Description: On Northern Thai writing system.
Notes: Thai and Northern Thai.