.V.S. N. Dora, G. M. Narasinha Rao, P. Prayaga Murty*, D. Srinivasa Rao, S V. “Diversity and Distribution of Pteridophytic Flora of Punyagiri Hill, Vizianagaram District, Andhra Pradesh, India”. Current Botany 2, no. 7 (July 31, 2011). Accessed April 28, 2024. https://updatepublishing.com/journal/index.php/cb/article/view/1356.