(3GdWHjYI GdadSWjfI ai GdTYQ GdYQHi GdMOjK (B: (3OQGSI ai bUjOI SdjeGf hGdLGeYI (B/ s - (3ejNGjhSa chgjf dHfRhfs; (3eMehO Ydi UejQIs ([S.N] : (3OGQ GdRgQGA ddfTQ hGdJhRjY , s, 1991)
Keywords: (3GdTYQ GdYQHis; (3GdGOH GdYQHis; (3adSWjfs; (3GSQGFjds