NILTONGKAM, J. Model of Public Speaking Skill Development for Local Community Leaders. Journal of Graduate MCU KhonKaen Campus, [S. l.], v. 6, n. 4, p. 639–660, 2019. Disponível em: https://so02.tci-thaijo.org/index.php/jg-mcukk/article/view/230150. Acesso em: 9 oct. 2026.