(3ShdhfG GdTeS hGdbeQ (B/ s - (3GhSJQHGS ejLjd GfLds; (3Qajb GdUHGfs ([S.N] : (3hRGQI GdKbGaI , s, 1991)
Keywords: (3GdYUQ GdMOjKs; (3GdGOH GdGeQjcis; (3GdeSQMjGJ GdGeQjcjIs