(3GdHMQ GdGMeQ hGdUQGY GdYQHi GdGSQGFjdi(B: (3GdJfGaS Hjf GSJQGJjLjJjf (B/ s - (3eQcR OQGSGJ GdhMOI GdYQHjIs; (3YHOGddg YHOGdeMSf GdSdWGfs ([S.N] : (3eQcR OQGSGJ GdhMOI GdYQHjI , s, 1984)
Keywords: (3GdYGde GdYQHis; (3GdfRGY GdYQHi GdGSQGFjdis; (3GSQGFjds; (3GdHMQ GdGMeQs; (3Gdbhi GdYXeis