Kumala, Shirly, Syarmalina, Syarmalina, AND Handayani, Atut. " Isolasi dan Uji Antimikroba Substansi Bioaktif Mikroba Endofit Ranting Tanaman Johar (Cassia siamea Lamk.)" JURNAL ILMU KEFARMASIAN INDONESIA [Online], Volume 4 Number 1 (26 April 2006)