Ragab Abdel Gawwad1,2, J. Å utković1, D. L. M. “Vitro Production of Solasodine Alkaloid in Solanum Nigrum under Salinity Stress”. Journal of Phytology, vol. 3, no. 1, Feb. 2011, https://updatepublishing.com/journal/index.php/jp/article/view/2215.