KHARAT, Rekha; JADHAV, Santosh; SHINDE, Shivaji; PAWAR, Seemarani; TAMBOLI, Ashpak. Estimation of Tramadol Hydrochloride in Bulk and Formulation by Second Order Derivative Area Under Curve UV-Spectrophotometric Methods. International Journal of Advances in Scientific Research, India, v. 1, n. 7, p. 308–312, 2015. DOI: 10.7439/ijasr.v1i7.1989. Disponível em: https://ssjournals.co.in/index.php/ijasr/article/view/1989. Acesso em: 15 feb. 2026.