[1]
Harahap, M.H. and Putri, A.E. 2020. Effect of variations in the composition and size of red sand grains on the quality of K-225 concrete. Journal of Metals, Materials and Minerals. 30, 4 (Dec. 2020), 79–83. DOI:https://doi.org/10.55713/jmmm.v30i4.765.