Gurung, K., and S. Manivannan. “Morphological Characterization and Secondary Metabolites Profile of Black Pepper (Piper Nigrum L.) Genotypes from Sikkim”. Journal of Spices and Aromatic Crops 29, no. 2 (December 30, 2020): 98–104. Accessed May 3, 2024. https://updatepublishing.com/journal/index.php/josac/article/view/6347.