Pro.Dr.Ekhlas H.Karam, Asst., and Noor. M.Mjeed. “Adaptive Backsteeping SMC With Cuckoo Search Algorithm for Two Wheeled Self Balancing Robot”. International Journal of Engineering and Technology, vol. 7, no. 3.13, July 2018, pp. 27-32, https://doi.org/10.14419/ijet.v7i3.13.16318.