(3Yde GLJeGY GdSjGSI (B: (3eHGOF Yde GdSjGSI (B/s - (3OhaQLjg, ehQjSs; (3Sdje MOGO s ([S.N] : (3GdeDSSI GdLGeYjI ddOQGSGJ hGdfTQ hGdJhRjY , s, 1991)