"(3GdKGHJ hGdeJZjQ(B""(3OQGSGJ ai GdeSQM GdJQGK GdTYHi(B""" / s - (3MSf YWjIs ([S.N] : (3GdgjFI GdeUQjI GdYGeI ddcJGH , s, 1990)
Keywords: (3GdahdcdhQs; (3GdGOH GdTYHis; (3GdGSGWjQs; (3GdGeKGd GdTYHjIs