Author: Sammanā Ngān Sưksā Khwāmmo̜som læ Sưksā Phonkrathop Singwǣtlō̜m "Khrōngkān Čhathā Lǣng Nam Samrap Khrōngkān Phatthanā Phư̄nthī thī Chāifang Thalē Phāk Tai" (2nd 1996 Nakhon Si Thammarat, Thailand)