Aruan, D. G. R. “ANALISA KADAR BESI (Fe) AIR SUMUR BOR DI JALAN BAKTI LUHUR KELURAHAN DWIKORA MEDAN”. JURNAL ANALIS LABORATORIUM MEDIK, vol. 5, no. 2, Dec. 2020, pp. 10-12, http://114.7.97.221/index.php/ALM/article/view/1598.