عناصر مشابهة

• Dysphonia in teachers, is it only a matter of voice misuse?
  بواسطة: Elham Mo'men Hassan Mohammed منشور: (2013)
• A study of different changes in laryngeal electromyography in different romyography in different dysphonias 
  بواسطة: Aly, mohamed hassan tarouk  منشور: (1999)
• Aerodynanic Analysis of Normal Voice and Some Voice Disorders 
  بواسطة: Abdel Fattah Hegazi, Mona  منشور: (1991)
• Childhood Dysphonia 
  بواسطة: Abdo Hasseba Mohamed, Ahmed  منشور: (2006)
• Aviation a coustic hatards and methods of protection .
  بواسطة: Nassar, Raga Mohamed .  منشور: (1969)