ASSESSING THE FITNESS AND VALIDITY FOR DEPTH-DISTRIBUTION PATTERNS OF AVAILABLE MICRONUTRIENTS (Fe and Mn) OVER A TOPOSEQUENCE AT LAFIA NORTH-CENTRAL NIGERIA: APPLICATION OF EQUAL-AREA SPLINES. FJS. 2020;4(1):43-54. Accessed September 8, 2025. https://fjs.fudutsinma.edu.ng/index.php/fjs/article/view/17