N. Fanani, S. Murtiadi, and D. Dinariana, “Value Engineering Based on Ecological-Visual Dual Function in Toll Road Landscape Planning: Empirical Evidence of Life Cycle Cost Efficiency of the Dumai–Rantauprapat Section”, Jurnal Riset Ilmu Teknik, vol. 4, no. 3, pp. 213–224, Nov. 2026.