Vulnerability analysis toward river flooding in the Comal Watershed, Indonesia Yunus Aris Wibowo, Muh Aris Marfai, Muhammad Pramono Hadi, Lintang Ronggowulan and Puspita Indra Wardhani E3S Web Conf., 325 (2021) 01022 Published online: 17 November 2021 DOI: 10.1051/e3sconf/202132501022