Thomas, Vinoth, S. Pramod, and K. S. Rao. 2019. “Structural Modification of Phloic Rays in Hevea Brasiliensis With Reference to Tapping Panel Dryness and Stimulation”. Journal of Plantation Crops 41 (2):142-50. https://updatepublishing.com/journal/index.php/JPC/article/view/5809.