The Strategy of Salt Business Development: A Case Study in Sumenep, Indonesia Rika Diananing, Amilia Destryana, Ribut Santosa, Noor Illi Mohamad Puad and Agustine Christela Melviana E3S Web Conf., 226 (2021) 00036 Published online: 05 January 2021 DOI: 10.1051/e3sconf/202122600036