Abubakar, A. “Test for Outlier and Normality of the Residuals for the Pseudo-1st Order Kinetic Modelling of Glyphosate Adsorption onto Palm Oil Fronds”. Bulletin of Environmental Science and Sustainable Management (e-ISSN 2716-5353), vol. 4, no. 2, Dec. 2020, pp. 18-22, doi:10.54987/bessm.v4i2.561.