Shaymaa I Shedeed, Ahmed H Khater, and Medhat K Ali. “Silicon-Enhanced Reduction of Some Heavy Elements Accumulation in Cowpea Plants (Vigna Unguiculata L.)”. Journal of Innovations in Pharmaceutical and Biological Sciences, vol. 5, no. 3, July 2018, pp. 01-10, https://jipbs.com/index.php/journal/article/view/324.