Nofal, Z. M., Y. M. E. Gebaly, E. Altun, M. Alizadeh, and N. S. Butt. “The Transmuted Geometric-Weibull Distribution: Properties, Characterizations and Regression Models”. Pakistan Journal of Statistics and Operation Research, Vol. 13, no. 2, June 2017, pp. 395-16, doi:10.18187/pjsor.v13i2.1923.