Kasdirin, H. A., Ali, S. K. and Tokhi, M. (2019) “Spread enhancement for firefly algorithm with application to control mechanism of exoskeleton system”, Mekatronika, 1(1), pp. 27-34. Available at: http://journal.ump.edu.my/mekatronika/article/view/163 (Accessed: 22September2019).