(3GdCSjQI Qbe (B93 : s (3ePcQGJ eOjMI GdSdeGf RhLI GdTgjO eMehO GdSdeGf (B/ s - (3GdJcQjJj, TGcQ Ydjs ((3HZOGO (B:s (3OGQ hGSW ddfTQ h GdJhRjY,s, 1990)
Keywords: (3GdJQGLes