Francis Joseph Steingass. A Comprehensive Persian-English Dictionary. Asian Educational Services. 1992: 1030–1031 (kush means "killer, kills, slays, murders, oppresses"), p. 455 (khirs–kush means "bear killer"), p. 734 (shutur–kush means "camel butcher"), p. 1213 (mardum–kush means "man slaughter") [2021-09-05]. ISBN 978-81-206-0670-8. (原始内容存档于2022-06-15).
Francis Joseph Steingass. A Comprehensive Persian-English Dictionary. Asian Educational Services. 1992: 1030–1031 (kush means "killer, kills, slays, murders, oppresses"), p. 455 (khirs–kush means "bear killer"), p. 734 (shutur–kush means "camel butcher"), p. 1213 (mardum–kush means "man slaughter") [2021-09-05]. ISBN 978-81-206-0670-8. (原始内容存档于2022-06-15).