Title: Rabīap Samnak Nāyok Ratthamontrī wādūai ngān sāraban, Phō̜. Sō̜. 2526 (chabap prapprung 2554)
Description: Secretarial procedure of Thailand's Office of the Prime Minister.
Subjects: Thailand, Prime ministers, Thailand. Samnak Nāyok Ratthamontrī, Rules and practice