Januarty W, Manik DEM, Loo P. Dissemination of the "SignalPolri" Application as Community Service of the GKPI Congregation Official Exemplary Congregation. J-IbM [Internet]. 2023 Aug. 23 [cited 2025 May 12];3(1):1-7. Available from: https://journal.aira.or.id/index.php/j-ibm/article/view/670