Sumardi, S., S. Sudarti, A. M. N. . Imron, and W. . Muldayani. “Blind Cane Using 2 Axis Servo With Fuzzy Logic Method”. Jurnal Penelitian Pendidikan IPA, vol. 8, no. 3, July 2022, pp. 1627-34, doi:10.29303/jppipa.v8i3.1748.