Comparative Sustained Release Matrix Capacities of some Polymer Matrices in Theophylline Hydrate Tablets . Journal of Science and Technology, [S. l.], v. 18, n. 2, 2016. DOI: 10.4314/just.v18i2.871. Disponível em: https://journal.knust.edu.gh/index.php/just/article/view/871. Acesso em: 11 jun. 2026.