Nair, Smita, and R. Keshavachandran. “Genetic Variability of <i>chakkarakolli< i> (<i>Gymnema sylvestre< I> R. Br.) in Kerala Assessed Using Morphological and Biochemical Markers”. Journal of Tropical Agriculture, vol. 44, Jan. 2007, pp. 64-67, https://jtropag.kau.in/index.php/ojs2/article/view/154.