Tanggal 29 April 2017 - re posted
https://fajar.co.id/2019/04/29/kerja-sama-dengan-yayasan-kalla-masjid-raudhatul-jannah-gelar-pelatihan-atasi-masalah-sound-system-masjid/
Tanggal 27 april 2019
https://fajar.co.id/2019/04/27/kerja-sama-dengan-yayasan-kalla-masjid-raudhatul-jannah-gelar-pelatihan-atasi-masalah-sound-system-masjid/