(3GdabGQjGJ (B/ s - (3QheQ, GdaQjO TjQhhOs; (3eMeO Gejf QTOi (B((3eJQLe(B)s; (3eMeO QTGO GdWhHi (B((3eQGLY(B)s; (3YHOGdYRjR SdjeGf fhGQs ([S.N] : (3OGQ GdfhQ , s, 1971)
Keywords: (3GdabGQjGJs; (3JTQjMs