āđāļāļ·āđāļāļāđāļāđāļāļāļēāļŠāđāļāđāļāļĩāļāļīāļĄāļāđāļāļāļāļ§āļēāļĄāļ§āļīāļāļąāļĒ āđāļĢāļ·āđāļāļ "Tonal Erosion in a Minority Ethnic Language and Its Implications for Language Education: Evidence from Intergenerational Tonal Change in Phuan, Northeastern Thailand" āļ§āļēāļĢāļŠāļēāļĢ Journal of Education and Training Studies āļāļēāļāļāđāļāļĄāļđāļĨ Scopus Q4


