%0 Journal Article %T Evaluation of reliability and performance in multi-subsystem serial system: Analyzing K-out-of-n redundancy in complex series-parallel configuration using Copula methodology %A IBRAHIM, K.G. %A YUSUF, I. %A AYAGI, H.I. %J Sigma Journal of Engineering and Natural Sciences %D 2026 %V 44 %P 1048-1068 %R 10.14744/sigma.2026.2024