Hardiyanto, S., Dalimunthe, R.S. , Lubis, C.A. and Daulay , S.R. 2024. Development of Indonesian Association of People with Disabilities (PPDI) Volunteers Based on Digital Applications to Increase Deaf Interaction. SPEKTA (Jurnal Pengabdian Kepada Masyarakat : Teknologi dan Aplikasi). 5, 1 (Jul. 2024), 1–11. DOI:https://doi.org/10.12928/spekta.v5i1.9138.