Usman, U., Suleiman, S., Magaji Arkilla, B., & Aliyu, Y. (2021). Nadarajah-Haghighi Model for Survival Data With Long Term Survivors in the Presence of Right Censored Data. Pakistan Journal of Statistics and Operation Research, 17(3), 695-709. https://doi.org/10.18187/pjsor.v17i3.3511