(3GdPcQ hGdOYGA(B: (3efgGL GdeSde ai Gdjhe hGddjdI hYQVg Udi Gddg Ydjg hSde GdOYhI Ydi GdbHGFds ([S.N] : (3ecJHI GdJQGK GdGSdGei , s, 1991)