(3eSJbHd GdeOjfjI h Gdfeh GdEbJUGOj aj XdGd eMOhOjI GdehGQO h GdfXe GdWHjYjI (B: s (3eTcdGJ GdEScGf h Gdfbd h GdJdhK (B: (3eLehYI CHMGK (B/ s - (3LQGQ, YGOd CMeOs; (3eYgO hhQdOhhJTs ((3YeGf (B:s (3eQcR GdcJH GdCQOfj,s, 1991)
Keywords: (3GdHdOGf GdfGejIs; (3GdEbJUGOs; (3GdJNWjW GdEbJUGOjs