Nazrul Aidil Mat Akher, et al. “The Optimal Span Length of the Overhead Catenary System for the Gemas-Johor Bahru Electrified Double Track Project”. Journal of Advanced Research in Applied Sciences and Engineering Technology, vol. 43, no. 2, Apr. 2024, pp. 148-66, doi:10.37934/araset.43.2.148166.