Abidin, Z. 2017. CHARACTERISTICS OF STEEL-SALT-SYSTEM CULTIVATION SYSTEM (SIGARANG) AS A REMEDY FOR IMPROVING THE CENTER SYSTEM. Jurnal Ecotipe (Electronic, Control, Telecommunication, Information, and Power Engineering). 4, 1 (Apr. 2017), 12-16. DOI:https://doi.org/10.33019/ecotipe.v4i1.13.