WANGTAKWADEEN, N.; CAIJUN, L. 清莱经济特区云南籍华裔中学生语言使用及语言态度调查报告. วารสารปัญญาภิวัฒน์, [S. l.], v. 9, p. 177–193, 2017. Disponível em: https://so05.tci-thaijo.org/index.php/pimjournal/article/view/107331. Acesso em: 2 พ.ค. 2024.