Udom, I. J. “Partitioning Nutrients Cycling in a Constructed Subsurface Wetland Treating Piggery Wastewater for Pollution Control”. ARID ZONE JOURNAL OF ENGINEERING, TECHNOLOGY AND ENVIRONMENT 19, no. 3 (September 1, 2023): 607-622. Accessed November 7, 2024. https://azojete.com.ng/index.php/azojete/article/view/782.