Tawfik, Mouwafak A., Emad N. Abdulwahb, and Salah M. Swadi. “Trajectory Tracking Control for a Wheeled Mobile Robot Using Fractional Order PIaDb Controller”. Al-Khwarizmi Engineering Journal 10, no. 3 (September 1, 2014): 39–52. Accessed December 4, 2025. https://alkej.uobaghdad.edu.iq/index.php/alkej/article/view/459.