LUDYAHANTORO, A. FORMULASI BIOINSEKTISIDA DARI EKSTRAK KLOROFORM BATANG TUMBUHAN BAKAU HITAM (Rhizophora Mucronata Lamk.) (BIOINSECTICIDE FORMULATIONS OF CHLOROFORM EXTRACTS OF MANGROVE PLANT (Rhizophora Mucronata Lamk.) . UJC 2012, 1.