L. C. Nzei, J. C. Ehiwario, and J. T. Eghwerido, “MONOTONICITY OF HAZARD RATE FUNCTION WITH APPLICATION TO THE NEW MIXTURE EXPONENTIAL-GAMMA (NMEG) DISTRIBUTION”, FJS, vol. 10, no. 1, pp. 243–248, Jan. 2026, doi: 10.33003/fjs-2026-1001-4337.