Uba, G., N. D. Zandam, A. Mansur, and M. Y. Shukor. “Outlier and Normality Testing of the Residuals for the Morgan-Mercer-Flodin (MMF) Model Used for Modelling the Total Number of COVID-19 Cases for Brazil”. Bioremediation Science and Technology Research (e-ISSN 2289-5892), vol. 9, no. 1, July 2021, pp. 13-19, doi:10.54987/bstr.v9i1.592.