V. V. . Singh, A. K. L. . Ismail, I. . Yusuf, and A. H. . Abdullahi, “Probabilistic Assessment of Computer-Based Test (CBT) Network System Consists of Four Subsystems in Series Configuration Using Copula Linguistic Approach”, JRSS, vol. 13, no. 02, pp. 401–428, Jan. 2021.