J. Al –Atia, Mohammed Hussein. “Effect of Calcium Hardness on Corrosion Rate of Domestic Water Galvanized Steel Pipes”. Nahrain University College of Engineering Journal 18, no. 1 (January 2, 2015): Ar_45 – 53. Accessed December 23, 2024. https://oldjournal.eng.nahrainuniv.edu.iq/index.php/main/article/view/170.