Saragih, Jopinus, Mohsen Bahmani Oskooee, Hendri Mayanta Tariga, Adrian K Tarigan, and Ben Setiawan. 2022. “CALCULATION OF LIGHTING INSTALLATIONS AND BUDGET COSTS ON ROAD PROTOCOLS (CASE STUDY JALAN MERDEKA – SUTOMO PEMANG SIANTAR)”. International Conference on Health Science, Green Economics, Educational Review and Technology 4 (1):1-14. https://doi.org/10.54443/ihert.v4i.128.