Xing Song, and Kamel Rekab. “Asymptotic Optimality of Three Stage Design for Estimating Product of Means With Applications in Reliability Estimation and Risk Assessment”. Journal of Advances in Applied & Computational Mathematics 3, no. 1 (June 16, 2016): 8–19. Accessed July 13, 2025. https://ijaet-journal.org/index.php/jaacm/article/view/443.