Siahaan, P. Pengaruh Ekstrak Urang Aring (Eclipta Alba L. Hask.) Terhadap Pertumbuhan Jamur Fusarium Oxysporum F. Lycopersici (Sacc.) Snyder & Hans (The Effect of Urang Aring Extract (Eclipta Alba L. Hask.) on the Growth of Fusarium Oxysporum F. Lycopersici (Sacc.) S. JBL 2012, 2.