“THE EFFECT OF ZINC TREATED SOIL ON THE GROWTH AND DEVELOPMENT OF VERNONIA AMYGDALINA DEL. PLANT” (2023) FUDMA JOURNAL OF SCIENCES, 3(2), pp. 250–258. Available at: http://www.fjsadmin.fudutsinma.edu.ng/index.php/fjs/article/view/1511 (Accessed: 12 September 2025).