Determination of Tapentadol Hydrochloride in Tablets by Three New Validated Spectrophotometric Methods. Pakistan Journal of Analytical & Environmental Chemistry, Pakistan, v. 14, n. 2, p. 38–43, 2025. DOI: 10.21743/. Disponível em: https://pjaec.pk/index.php/pjaec/article/view/353. Acesso em: 12 jul. 2025.