O. O. . Alabi, S. O. Sedara, K. . Adeyemi, F. . Oladejo, and F. . Ayedun, “Variations in the effects caused by magnetic field on chlorophyll, nitrogen, calcium, and iron contents in species of vegetable plants”, Tanz. J. Sci., vol. 47, no. 2, pp. 841–846, May 2021.