MUSTIKASARI, KAMILIA, AND SANTOSO, MARDI. " 3,3’-Di(5,7-dibromoindol-3-yl)-indolin-2-one: Synthesis and Cytotoxic Assays against WiDr Colon Cancer Cells" JURNAL ILMU KEFARMASIAN INDONESIA [Online], Volume 11 Number 2 (30 September 2013)