K. Rajendiran, L. Gowsalya, and J. S. Sudha, “In Vitro Screening of Stem Explants of In Situ Uv-B Irradiated Cowpea Varieties for Germplasm Storage”, Int J Appl Sci Biotechnol, vol. 4, no. 1, pp. 44–52, Mar. 2016.