A GOPALAM, JOSE ABRAHAM, B. K. B. S. J. R. “Variability and Association Studies in Cinnamon (Cinnamomum Verum)”. Journal of Spices and Aromatic Crops, vol. 1, no. 2, Dec. 1992, pp. 148-50, https://updatepublishing.com/journal/index.php/josac/article/view/4470.