Sexual Function and Dysfunction: Study, Diagnosis and Treatment. Taylor & Francis US. 2006 [2018-04-13]. ISBN 978-1-84214-263-9. (原始内容存档于2014-07-09). Greenberg
present stem of the verb 'to kill' (koštan کشتن). According to linguist Francis Joseph Steingass, the suffix -kush means 'a male; (imp. of kushtan in comp