NAIR, K. R. P. N. C. “Cytological Studies on Diploid and Autotetraploid Ginger (Zingiber Officinale Rosc.)”. Journal of Spices and Aromatic Crops, vol. 1, no. 2, Dec. 1992, pp. 125-30, https://updatepublishing.com/journal/index.php/josac/article/view/4468.