Road Service Levels Analysis at The Economic Centers of Archipelago Regions During the Covid-19 PandemicGaus Abdul, Andartomo Zulfikar, Firsandi Sarbin, Nurrahim Aditya and Aksa Sitti AminahE3S Web Conf., 328 (2021) 10021DOI: https://doi.org/10.1051/e3sconf/202132810021