%0 Journal Article %A %D 2019 %J International Journal of Sustainable Energy and Environmental Research %@ 2306-6253 %V 8 %N 1 %P 62-69 %T Using Refined Phosphogypsum to Replace Natural Gypsum in Portland Cement Production in Vietnam %M 10.18488/journal.13.2019.81.62.69 %U http://www.pakinsight.com/archive/13/03-2019/1