(3aj QMGH GdbQBf GdcQje (B:s (3hgh jTJed Ydi JGQjN GdbQBf(B-(3JfRdGJ GdbQBf(B-(3JGQjN GdbQGAGJ(B-(3CSHGH GdfRhd (B... /s - (3eMjSf, eMeO SGdes ((3HjQhJ (B:s (3OGQ GdLjd,s, 1989)
(3jTJed Ydi HHdjhLQGajI(B.s
Keywords: (3GdbQBfs -- (3eHGMK YGeIs; (3GdbQBfs -- (3JGQjNs; (3GdbQBfs -- (3CSHGH GdfRhds