(3SdSdI GdMjhGf(B: (3GdSdhc GdGLJeGYi (B/ s - (3GjaGf cfhOSfs; (3fGJhQ ahJQ (B((3JUhjQ(B)s; (3Lhf ajjdhs; (3Gejf QTjO MeOis ([S.N] : (3OGQ GdcJGH GdeUQi , s, 1977)
Keywords: (3GdGWaGds; (3GdSdhc GdGLJeGYi YfO GdMjhGfGJs; (3GdMjhGfGJ (B- (3JQHjIs