Rāingān phāk sombūn sammanō rōngrīan læ khrū, Ph̨ō. S̨ō. 2510 : Final report, school and teacher census, 1967 (Samnakngān Sathiti h̄æng Chāt, Samnak Nāyok Ratthamontrī : Samnakngān Wāngph̄æn Kānsưksā, Krasūang Sưksāthikān, 1969)