Trần Việt, H. and Đỗ Văn, T. 1568566800. Analysis of reinforced concrete element under aixial load and biaxial bending at serviceability limit state according to Vietnamese standard TCVN 11823-2017. Transport and Communications Science Journal. 70, 1 (1568566800), 73-84. DOI:https://doi.org/10.25073/tcsj.70.1.45.