(3GdNdGaGJ GdRhLjI ai fXQ GdGSdGe (B/ s - (3GdecJH GdYGdei ddHMhKs ([S.N] : (3OGQ ecJHI GdMjGI , s, 1984)
Keywords: (3GdRhGLs; (3GdMbhb GdRhLjIs; (3GdeTcdGJ GdGLJeGYjIs; (3GdGRhGL hGdRhLGJs