บุญทันใจ จ. โพลิยูริเธน. Engineering and Applied Science Research, [S. l.], v. 4, n. 3, p. 20–26, 2013. Disponível em: https://ph01.tci-thaijo.org/index.php/easr/article/view/42635. Acesso em: 31 aug. 2026.