Mahmoud, T. , Hong, T. , Marhaban, M. (2009), 'Neuro Fuzzy and Self Tunging Fuzzy Controller to Improve Pitch and Yaw Control Systems Resposes of Twin Rotor MIMO System', World Academy of Science, Engineering and Technology, Open Science Index 26, International Journal of Mechanical and Mechatronics Engineering, 3(2), 165 - 169.