(3cJGH GdSjQ (B/ s - (3GdaRGQi (B: (3GHh GSMGb GHQGgje Hf eMeO Hf GdMGQK Hf GSeGA Hf NGQLIs; (3GdbQWHi(B, (3eMeO Hf hVGMs; (3aGQhb MeGOg (B((3OQGSI hJMbjb(B)s ((3GdbGgQI (B: s (3eDSSI GdQSGdI , s, 1987)
Keywords: (3GdLgGO ai GdGSdGes; (3GdLRjIs; (3GdSjQ (B((3abg GSdGei(B)s; (3GdZfGFes