Mubarok, I., and E. Purwanda. “Business Feasibility Study of the Production of a Simple Digital Distance Measuring Device Based on a Microcontroller”. Jurnal Ilmiah Ekonomi Global Masa Kini, vol. 16, no. 1, Jan. 2025, pp. 25-30, doi:10.36982/jiegmk.v16i1.5270.