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Theraphan L. Thongkum

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Phāsā khō̜ng nānā chonphao nai khwǣng Sēkō̜ng Lāo Tai: khwāmrū phư̄nthān phư̄a kānwičhai læ phatthanā = Languages of the tribes in Xekong Provice Southern Laos : a foundation for research and development