Evaluation of Pharmacognostic Characteristics of the Leaf of Ageratum houstonianum Mill. Compositae. NJPR [Internet]. 28 déc. 2020 [cité 8 juill. 2026];16(2):107-15. Disponible sur: https://www.ojshostng.com/index.php/njpharmaceuticalsciences/article/view/1542