Cordeiro, Gauss, Mohamed Mead, Ahmed Z. Afify, Adriano Suzuki, and Amarat Abd El-Gaied. 2017. “An Extended Burr XII Distribution: Properties, Inference and Applications”. Pakistan Journal of Statistics and Operation Research 13 (4), 809-28. https://doi.org/10.18187/pjsor.v13i4.1965.