HPLC analysis of β-sitosterol in herbal medicine and vegetable oils. International Journal of Pharmacy and Life Sciences, [S. l.], v. 3, n. 5, p. 1666–1669, 2012. Disponível em: http://ijplsjournal.com/index.php/ijpls/article/view/832. Acesso em: 17 jan. 2026.