Author: Thailand) Kānprachum thāng Wichākān Khrư̄akhāi Kānwičhai Sathāban ʻUdommasưksā Thūa Prathēt pī 2551 "Thēknōlōyī Sū Chumchon phư̄a Kānphatthanā thī Yangyư̄n" (2008 Khon Kaen