Haven't read it but this currently-free Springer textbook covers DEs, Laplace and Fourier transformations, "Differential Equations and Their Applications": http

Haven't read it but this currently-free Springer textbook covers DEs, Laplace and Fourier transformations, "Differential Equations and Their Applications": https://link.springer.com/book/10.1007%2F978-1-4612-4360-1 https://link.springer.com/book/10.1007%2F978-1-4612-4360-1