(3GdGMJcGQ ai GdTQjYI GdGSdGejI(B: (3HMK abgi ebGQf (B/ s - (3eMeO egOi TeS GdOjfs ([S.N] : (3GdeDSSI GdOhdjI ddOQGSGJ hGdfTQ , s, 1990)
Keywords: (3GdGbJUGOs; (3GdTQjYI GdGSdGejIs; (3GdGMJcGQs; (3GdGMJcGQ GdTQGFis