Evaluation of Pharmacognostic Characteristics of the Leaf of Ageratum houstonianum Mill. Compositae. NJPR [Internett]. 28. desember 2020 [sitert 21. mai 2026];16(2):107-15. Tilgjengelig på: https://www.ojshostng.com/index.php/njpharmaceuticalsciences/article/view/1542