P N RAVINDRAN, B SASIKUMAR, JOHNSON K GEORGE, T JOHN ZACHARIAH, M J RATNAMBAL, K NIRMAL BABU,. 1996. “I1SR Prabha and IISR Prathibha - Two New High Yielding and High Quality Turmeric (Curcuma Longa L.) Varieties”. Journal of Spices and Aromatic Crops 5 (1):41-48. https://updatepublishing.com/journal/index.php/josac/article/view/4374.