Wiji Lestari, Ahsan Romadlon Junaidi, and Ediyanto. “The Use of Fingerboard Media to Improve the Ability to Count Addition Operations in Grade V Intellectual Disability Students at SDLB Sumber Dharma Malang City”. Jurnal Multidisiplin Madani, vol. 3, no. 7, July 2023, pp. 1562-7, doi:10.55927/mudima.v3i7.4097.