(3gPG gh GdGSdGe (B/ s - (3jhSa YHOGdhgGHs ([S.N] : (3ecJHI GdGfOdS ddfTQ hGdJhRjY , s, 1986)
Keywords: (3GdGSdGes; (3OaY GdeWGYf Yf GdGSdGes; (3GdGSdGe (B- (3OYhIs