USMAN, M A; HAMMED, F A; DANIEL, D O. Free Vibrational Analysis of Non-uniform Double Eulerbernoulli Beams on a Winkler Foundation Using Laplace Differential Transform Method. Journal of Engineering Science, [S. l.], v. 14, n. 1, p. 111–121, 2023. DOI: 10.3329/jes.v14i1.67640. Disponível em: https://www.banglajol.info/index.php/JES/article/view/67640. Acesso em: 7 sep. 2025.