DEPTH-DISTRIBUTION PATTERN OF ORGANIC CARBON ALONG RIVER JAKARA: APPLICATION OF EQUAL-AREA SPLINES TO URBAN AGRICULTURAL SOILS USING R. FJS [Internet]. 2023 Apr. 10 [cited 2025 Sep. 10];3(3):34-43. Available from: https://fjs.fudutsinma.edu.ng/index.php/fjs/article/view/1537