Abidin Z. CHARACTERISTICS OF STEEL-SALT-SYSTEM CULTIVATION SYSTEM (SIGARANG) AS A REMEDY FOR IMPROVING THE CENTER SYSTEM. JurnalEcotipe [Internet]. 25Apr.2017 [cited 14May2024];4(1):12-6. Available from: https://ecotipe.ubb.ac.id/index.php/ecotipe/article/view/13