Saowalak Wongnoppharalert. (1993) Nam Sod Khmu syntactic structure : a study in tagmemics, transformational and case grammar. Mahidol University,:ม.ป.ท.Saowalak Wongnoppharalert. 1993. Nam Sod Khmu syntactic structure : a study in tagmemics, transformational and case grammar. ม.ป.ท.:Mahidol University,;Saowalak Wongnoppharalert. Nam Sod Khmu syntactic structure : a study in tagmemics, transformational and case grammar. ม.ป.ท.:Mahidol University, 1993. Print.