Method development and validation of Rupatadine fumarate and Montelukast sodium by RP- HPLC. International Journal of Pharmaceutical Chemistry, [S. l.], v. 5, n. 2, p. 57–65, 2015. DOI: 10.7439/ijpc.v5i2.1633. Disponível em: https://www.ssjournals.co.in/index.php/ijpc/article/view/1633. Acesso em: 15 mar. 2026.