Formulation and evaluation of floating drug delivery system containing theophylline as a model drug. International Journal of Pharmacy and Life Sciences, [S. l.], v. 2, n. 4, p. 695–103, 2011. Disponível em: http://ijplsjournal.com/index.php/ijpls/article/view/985. Acesso em: 15 dec. 2025.