TCVN - QCVN 06 : 2010/BXD
01/03/21
https://file.hstatic.net/1000125203/file/n_06_quy_chuan_ky_thuat_quoc_gia_ve_an_toan_chay_cho_nha_va_cong_trinh_c830ff080ea84ab097a9d20be439f1fc.pdf
https://file.hstatic.net/1000125203/file/n_06_quy_chuan_ky_thuat_quoc_gia_ve_an_toan_chay_cho_nha_va_cong_trinh_c830ff080ea84ab097a9d20be439f1fc.pdf