Deded Eka Sahputra, Rita Nasmirayanti, Rafki Imani, Nanang Fatchurrohman, and Noto Dewantoro. “Experimental Study Compressive Strength of Concrete With Palm Shells As a Partial Replacement for Coarse Aggregate”. International Journal of Engineering Technology and Natural Sciences, Vol. 5, no. 2, Dec. 2023, pp. 174 -82, doi:10.46923/ijets.v5i2.280.