« ON PERFORMANCE OF SOME METHODS OF DETECTING NONLINEARITY IN STATIONARY AND NON-STATIONARY TIME SERIES DATA ». FULafia Journal of Science and Technology 2, no. 2 (décembre 31, 2016): 144–150. Consulté le mai 17, 2026. https://lafiascijournals.org.ng/index.php/fjst/article/view/65.