B. D Halilu, L. Maijama’a, A. G Jumba, S. A Baraza, A. A Jimoh, and K.T Aminu. “CONTROLLER DESIGN FOR MAGNETIC LEVITATION SYSTEM USING BACTERIA FORAGING ALGORITHM TECHNIQUE”. International Journal of Advances in Scientific Research and Engineering (IJASRE), ISSN:2454-8006, DOI: 10.31695/IJASRE, vol. 5, no. 5, May 2019, pp. 149-56, doi:10.31695/IJASRE.2019.33210.