Rizman, Z.I., J Adnan, F.R. Hashim, I.M. Yassin, A Zabidi, F.K. Zaman, and K.H. Yeap. “An Improved Controller for Grass Cutting Application”. Journal of Fundamental and Applied Sciences 10, no. 1S (March 19, 2018): 806–815. Accessed September 7, 2026. https://www.ajol.info/index.php/jfas/article/view/168467.