หวังเบ็ญหมัด ช. Delivering Happiness. Journal of Management Sciences Suratthani Rajabhat University, [S. l.], v. 3, n. 2, p. 213–224, 2018. Disponível em: https://so03.tci-thaijo.org/index.php/msj/article/view/116769. Acesso em: 3 may. 2024.