Ibnu Miftakhul Azis, Yenni Arnas, and Inof Seno Acton. “IMPLEMENTASI SAND FILTER DAN CARBON FILTER DALAM MENGOPTIMALKAN KUALITAS AIR BERSIH DI ASRAMA TOWER”. Langit Biru: Jurnal Ilmiah Aviasi, Vol. 11, no. 3, Oct. 2018, pp. 63-68, https://journal.ppicurug.ac.id/index.php/jurnal-ilmiah-aviasi/article/view/223.