Samawi, Hani, Amal Helu, and Herash Rochani. “Further Increasing Fisher’s Information for Parameters of Association in Accelerated Failure Time Models via Double Extreme Ranks”. Pakistan Journal of Statistics and Operation Research 15, no. 3 (September 13, 2019): 679-700. Accessed July 31, 2025. https://pjsor.com/pjsor/article/view/2605.