(3GdMjGI GdGLJeGYjI ai eUQ GdbOjeI (B/ s - (3HJQi, h(B.(3e adfOQRs; (3MSf eMeO LhgQs; (3adfOQR HJQis ([S.N] : (3GdgjFI GdeUQjI GdYGeI ddcJGH , s, 1975)
Keywords: (3GdGMhGd GdGLJeGYjIs; (3eUQ GdbOjeIs