Khamthīap rō̜. lō̜.
Subtitle: thī pen tūaton kham rư̄ pen sūan khō̜ng kham læ pen tūakhūap (chai pai phlāng)
By: khō̜ng Phrayā Wisutthasuriyasak.
Contributors: Siam. Krom Sưksāthikān.
Edition: Phim khrang rǣk.
Publisher: Krom Sưksāthikān
Published: 1909
Place of publication: [Bangkok]
Language: tha
Format: Microform
Number of pages: 227
Description: Definitions of letters rō̜. and lō̜. in the Thai alphabet and their usage.
Notes: Microfiche. New Delhi : Library of Congress Office ; Washington, D.C. : Library of Congress Photoduplication Service, 1992. 3 microfiches.
In Thai.
"Bǣprīan kānkhīan ʻān, Krom Sưksāthikān."