สินหิรัญวิวัฒน์ ก. Single or Sole Proprietorship (in Thai). Connexion: Journal of Humanities and Social Sciences, Chiang Rai, Thailand, v. 5, n. 1, p. 66–86, 2016. Disponível em: https://so05.tci-thaijo.org/index.php/MFUconnexion/article/view/241357. Acesso em: 24 apr. 2024.