Pratama, M. M. A., M. F. Andi, and C. Hadhinata. “MOMENT-CURVATURE ANALYSIS OF GRADED CONCRETE BEAM WITH CONCRETE STRENGTH DISPARITY VARIATIONS ”. Jurnal Pensil : Pendidikan Teknik Sipil, Vol. 11, no. 1, Jan. 2022, pp. 20 -35, doi:10.21009/jpensil.v11i1.25072.