Ron Bishop and  Jim Mitchell and  Talitha Best,  Understanding Student Pilot Mental Workload in Recreational Aircraft Training.   journal   = {International Journal of Educational and Pedagogical Sciences}, [online]. World Academy of Science, Engineering and Technology.
    February 2020, vol. 159(3). 193 - 196
    [viewed 09 May 2024]. Available from: https://publications.waset.org/pdf/10011118.