(3MGdI WhGQFs - (3cGej(B. (3GdHjQs; (3GdHMjQj(B. (3chKQ YHOGdSdGes ((3hRGQI GdGYdGes (3GdchjJs, 1975)
Keywords: (3eSQMjGJs; (3eSQMjGJ YGdejI eJQLeIs