SARMA, M ANANDARAJ, Y R. “Effect of Vesicular Arbuscular Mycorrhiza on Rooting of Black Pepper (Piper Nigrum L.)”. Journal of Spices and Aromatic Crops 3, no. 1 (June 22, 1994): 39–42. Accessed May 19, 2024. https://updatepublishing.com/journal/index.php/josac/article/view/4324.