PHARMACOGNOSTICAL, PRELIMINARY PHYTOCHEMICAL AND ANTIOXIDANT EVALUATION OF HIBISCUS SABDARIFFA, LINN. Journal of Pharmaceutical Research and Opinion, [S. l.], v. 2, n. 8, 2014. Disponível em: http://www.innovativejournal.in/index.php/jpro/article/view/759. Acesso em: 23 oct. 2026.