Nurida Finahari and Alfiana 2021. Developing The Firm Mosque Model As A Public Health Institution Through The Implementation Of Psychoacoustic On Loudspeaker Systems. GANDRUNG: Jurnal Pengabdian Kepada Masyarakat. 2, 1 (Mar. 2021), 115-129. DOI:https://doi.org/10.36526/gandrung.v2i1.1191.