Utilization of Shrimp Shells Waste and Golden Snails to Increase the Yield of Shallots Dian Indratmi, Padhina Pangestika, Diva Asih Raudya Tuzzahra and Mochammad Wachid BIO Web Conf., 104 (2024) 00006 Published online: 01 May 2024 DOI: 10.1051/bioconf/202410400006