(3CKQ GdWdGb Ydi GfMQGa GdCMOGK (B/s - (3GdeGdcj, eMeO Ydj Hf Vja Gddg Hf Ydjs; (3HOQ, LdGds (1989)
(3ETQGa (B: (3LdGd HOQ(B. s
(3jTJed Ydi eSJNdU HGddZI GdYQHjI(B.s
(3HHdjhLQGajI (B: (3hQbI (B198-202.s
Keywords: (3GdWdGbs -- (3LhGfH GLJeGYjIs; (3LfGM GdCMOGKs -- (3LhGfH GLJeGYjIs; (3QSGdI LGeYjI (B((3eGLSJjQ(B)s