Evaluation of Pharmacognostic Characteristics of the Leaf of Ageratum houstonianum Mill. Compositae. Nigerian Journal of Pharmaceutical Research, [S. l.], v. 16, n. 2, p. 107–115, 2020. DOI: 10.4314/njpr.v16i2.2. Disponível em: https://ojshostng.com/index.php/njpharmaceuticalsciences/article/view/1542. Acesso em: 5 kwi. 2026.