(3dSGf GdejRGf (B/ s - (3GdYSbdGfj, CMeO Hf Ydj Hf eMeO EHf MLQs ((3HjQhJ (B:s (3eDSSI GdCYdej ddeWHhYGJ,s, 1971)
Keywords: (3GdMOjK GdTQjas; (3GdJQGLes