Surianto, Vincent, et al. “Determination of Optimal Cylinder Gas Packaging Distribution Routes Through the Solution of the Capacitated Vehicle Routing Problem at PT Samator Gas Industri Balikpapan”. IJIEM - Indonesian Journal of Industrial Engineering and Management, vol. 7, no. 1, Mar. 2026, pp. 159-68, doi:10.22441/ijiem.v7i1.31786.