Riduan, Ahmad, et al. “TEKNOLOGI PENGOLAHAN AIR MINUM MENGGUNAKAN MULTI FILTRASI DI MA’HAD RIZQULLAH ”. Prosiding Seminar Nasional Pengabdian Kepada Masyarakat, vol. 1, no. 01, Dec. 2020, pp. SNPPM2020BRL-61 - SNPPM2020BRL-66, https://journal.unj.ac.id/unj/index.php/snppm/article/view/19713.