SORNKAEW, P. Differential Operator and Laplace Transform for Linear Differential Equations. Rattanakosin Journal of Science and Technology, [S. l.], v. 5, n. 3, p. 1–4, 2023. Disponível em: https://ph02.tci-thaijo.org/index.php/RJST/article/view/248672. Acesso em: 16 sep. 2026.