(3GLQGAGJ GdJfajP ai GdehGO GdeOfjI (B/ s - (3fHjd GSeGYjd YeQs ([S.N] : (3eDSSI GdKbGaIGdLGeYjI ddWHY hGdfTQ , s, 1980)
Keywords: (3GdbGfhfs; (3bGfhf GdeQGaYGJs; (3bGfhf GdGLQGAGJ GdeOfjIs; (3JfajP GdGMcGes