Ochwach, Jimrise, Sammy W. Musundi, and Mark O. Okongo. “STABILITY ANALYSIS OF THE MODIFIED ADVECTION-DISPERSION MODEL FOR NITRATE LEACHING INTO GROUNDWATER”. Journal of Progressive Research in Mathematics 14, no. 2 (October 12, 2018): 2334-2340. Accessed April 19, 2024. http://scitecresearch.com/journals/index.php/jprm/article/view/1570.