(3OQGSGJ ai GdhGbYjI (B/ s - (3fGja HdhR(B((3eJQLe(B)s; (3dhcGJT, LhQLs ([S.N] : (3GdeDSSI GdLGeYjI ddOQGSGJ hGdfTQ hGdJhRjY , s, 1972)
Keywords: (3GdadSaIs; (3GdhGbYjIs; (3GdadSaI GdMOjKIs; (3GdQSGFds; (3GdadSaI GdGhQHjIs