Azzam, M. Abdullah, Uzma Batool, and Hilman Fauzi. “Design of an Helical Spring Using Single-Solution Simulated Kalman Filter Optimizer”. Mekatronika 1, no. 2 (July 15, 2019): 93-97. Accessed October 26, 2020. https://journal.ump.edu.my/mekatronika/article/view/4990.