Some 51 women workers of different factories and institutions were sexually abused, five of them were brutally killed after rape in the first six months of this year in the country. Disclosing a recent report prepared by Bangladesh Institute of Labour Studies (BILS) on the basis of reports published in 12 national dailies, executives of the BILS told a press conference yesterday that of the total rape victims, 31 were garment workers, 10 housemaids, three were workers of fish processing units, two NGO workers and five of other sectors.