TY - CONF T1 - Stiffness of graded concrete beams on different cross- sectional dimension ratio and steel reinforcement ratio JO - PROCEEDINGS OF THE 3RD INTERNATIONAL CONFERENCE OF GREEN CIVIL AND ENVIRONMENTAL ENGINEERING (GCEE 2021) UR - http://dx.doi.org/10.1063/5.0072560 PY - 2021/10/25 AU - Damayanthi W AU - Pratama MMA AU - Susanto PB AU - Prayuda H ED - DO - DOI: 10.1063/5.0072560 PB - AIP Publishing Y2 - 2024/12/22 ER -