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Dyfyniad Arddull ChicagoSomkhit Chaiyawong. Kāns̄ưpkhon Phūmpanyā Th̨ōngthin Čhangwat N̨ōng Khāi Ph̄ưa Pen L̄æng Rīanrū Nai Kānbūranā Kānrīan Kāns̨ōn. [Nong Khai]: Sūn Kh̨ōmūn Sangkhom Watthanatham Th̨ōngthin Čhangwat N̨ōng Khāi Khēt Kānsưksā 9, 2002.
Dyfyniad MLASomkhit Chaiyawong. Kāns̄ưpkhon Phūmpanyā Th̨ōngthin Čhangwat N̨ōng Khāi Ph̄ưa Pen L̄æng Rīanrū Nai Kānbūranā Kānrīan Kāns̨ōn. Sūn Kh̨ōmūn Sangkhom Watthanatham Th̨ōngthin Čhangwat N̨ōng Khāi Khēt Kānsưksā 9, 2002.
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