Estimation of the Folic Acid Using Zero Order, Area Under Curve and First Derivative Spectrophotometric Methods in Pure and Marketed Tablet Formulations. Al-Nahrain Journal of Science, [S. l.], v. 20, n. 3, p. 34–41, 2017. Disponível em: https://anjs.edu.iq/index.php/anjs/article/view/101.. Acesso em: 3 may. 2024.