(3YHGOI GdGhKGf(B: (3GdGUfGe(B, (3GdJeGKjd(B, (3GdJUhjQ(B, (3GdSjfeG(B, (3GdJdjaRjhf (B/ s - (3YcGTI YHOGdefGf GdWjHis ([S.N] : (3ecJHI GdJQGK GdGSdGei , s, 1990)
Keywords: (3GdJUhjQ (B- (3GdGJs; (3GdfMJs; (3GdGhKGfs; (3GdGUfGes; (3GdhKfjIs; (3GdSjfeG hGdJdjaRjhfs; (3GdbQGf (B- (3GMcGes