Formulation and Development of Gastroretentive Drug Delivery System of Efavirenz. International Journal of Pharmaceutical Sciences and Drug Research, [S. l.], v. 11, n. 5, p. 231–240, 2019. DOI: 10.25004/IJPSDR.2019.110513. Disponível em: https://ijpsdronline.com/index.php/journal/article/view/748.. Acesso em: 1 dec. 2025.