(3feGPL GdGJUGd hJWHjbGJgG ai GdGYdGe GdOhdi (B/ s - (3eMeO Ydi GdYhjfis ([S.N] : (3ecJHI GdGfLdhGdeUQjI , s, 1990)
Keywords: (3GdGJUGds; (3hSGFd GdGYdGes; (3GdGYdGe GdOhdis