Carboxymethylation of Karaya gum: application in gastroretentive drug delivery for sustained release of model drug. International Journal of Pharmaceutical Sciences and Drug Research, [S. l.], v. 12, n. 3, p. 300–306, 2020. DOI: 10.25004/IJPSDR.2020.120314. Disponível em: https://ijpsdronline.com/index.php/journal/article/view/1508.. Acesso em: 22 sep. 2025.