Author: Kānsēwanā rư̄ang "ʻOngkō̜n Chumchon læ Khrư̄akhāi Chāobān nai Kāndūlǣ Sukkhaphāp khō̜ng Tonʻēng" (1993 Sathāban Wičhai Sangkhom, Mahāwitthayālai Chīang Mai)