Janter Napitupulu, Nasruddin M.N, Immanuel Munthe and Setia Megawati (2020). A MODEL OF CARBON EMISSION REDUCTION BASED ON THE EFFICACY OF NATIONAL PUBLIC ROAD LIGHTING IN NORTH SUMATERA PROVINCE. ISSN: 2320-5407. DOI: 10.21474/IJAR01/11053 . CiteFactor. https://citefactor.org/article/175759/a-model-of-carbon-emission-reduction-based-on-the-efficacy-of-national-public-road-lighting-in-north-sumatera-province