Aminah, N., S. Wirman, and N. Fitrya. “Development of an Arithmetic Trainer Kit for Understanding the Concepts of Binary Addition and Subtraction”. JTEIN: Jurnal Teknik Elektro Indonesia, Vol. 5, no. 2, Aug. 2024, pp. 378-89, doi:10.24036/jtein.v5i2.677.