Nyaenya, Ngorwe Evans, Nyambaka Hudson, Murungi Jane, Nawiri Mildred, and Ongera Tabitha. “Efficacy of Nanofertilizers on Spinach Growth Performance in Medially Polluted Soils”. The International Journal of Science & Technoledge 8, no. 4 (April 30, 2020). Accessed June 26, 2024. http://internationaljournalcorner.com/index.php/theijst/article/view/152562.