(3JaSjQ GdUMGHI eejRGJI(B- (3NUGFUI(B- (3eUGOQI(B- (3bjeJI GdYdejI (B/ s - (3eMeO YHOGdQMjes ([S.N] : (3ecJHI GdJQGK GdGSdGei , s, 1991)
Keywords: (3JaGSjQs; (3Ggd GdSfIs; (3GdbQGfs