(3GdeDQN GdGjQGfi GdcHjQ ZjGK GdOjf NhGfOejQ ceG jHOh ai cJGHI OSJhQ GdhRQGA (B/ s - (3MQHi Gejf SdjeGfs ([S.N] : (3GdgjFI GdeUQjI GdYGeI ddcJGH , s, 1980)
Keywords: (3GdJGQjN GdGSdGeis; (3GdhRQGAs; (3GdMVGQI GdGSdGejIs; (3GdOhdI GdUahjIs; (3GdOhdI GdSGeGfjIs; (3GjQGf ai GdGOHs