Saudi, Azali, and Jumat Sulaiman. “Perancangan Laluan Robot Menggunakan Fungsi Harmonik Melalui Kaedah Lelaran Sapuan Suku: Robot Path Planning Using Harmonic Functions via Quarter Sweep Iterative Method”. Journal of Science and Mathematics Letters, vol. 5, Dec. 2017, pp. 1-15, https://doi.org/10.37134/jsml.vol5.1.2017.