(3eSJbHdfG GdeTJQc (B((3YGde GdeYQaI (B142) / s - (3GddLfg GdYGdejI ddHjFI hGdJfejs; (3eMeO ceGd YGQas; (3Ydi MSjf MLGL (B((3eQGLY (B)s ((3GdchjJ (B: s (3GdeLdS GdhWfi ddKbGaI hGdafhf hGdGOGH , s, 1989)
Keywords: (3GdHjFIs; (3GdYdes; (3MeGjI GdHjFIs; (3GdJfejI GdGLJeGYjIs; (3GdJdhKs; (3GdeSJbHdjIs; (3GdeSJbHds