Januarty, Widalicin, et al. “Dissemination of the ‘SignalPolri’ Application As Community Service of the GKPI Congregation Official Exemplary Congregation”. Jurnal IPTEK Bagi Masyarakat, vol. 3, no. 1, Aug. 2023, pp. 1-7, doi:10.55537/jibm.v3i1.670.