Author: Kānprachum chœ̄ng Patibatkān kīeokap Rōk ʻĒt rư̄ang Konlawithī Khūapkhum læ Pō̜ngkan Rōk ʻĒt rūam kap Chumchon nai Phāk Tawanʻō̜k Chīang Nư̄a (1st 1989 Khon Kaen, Thailand)