Author: Sammanā Chīčhǣng Phrarātchakamnot Kǣkhai Phœ̄mtœ̄m Pramūan Rātsadākō̜n (Chabap thī 8) Phō̜. Sō̜. 2524 kap Panhā Phāsī Ngœ̄ndai Nitibukkhon (1981 Bangkok, Thailand)