Jiraphon Taengko. (1987) A Tonal comparison of Tai dialects in Loci Province. Mahidol University,:ม.ป.ท.Jiraphon Taengko. 1987. A Tonal comparison of Tai dialects in Loci Province. ม.ป.ท.:Mahidol University,;Jiraphon Taengko. A Tonal comparison of Tai dialects in Loci Province. ม.ป.ท.:Mahidol University, 1987. Print.