“In Vitro Regeneration of the Medicinal Herb of Nilgiri Shola, Acmella Calva L. From Leaf Derived Callus”. Plant Tissue Culture and Biotechnology 17, no. 2 (May 26, 2009): 109–114. Accessed July 9, 2026. https://www.banglajol.info/index.php/PTCB/article/view/2566.