Tjahjanto, Helmy, et al. “Diaphragm Axial Capacity for External Diaphragm Connections (EDCs) in Square CFST Column Structures”. Bulletin of the New Zealand Society for Earthquake Engineering, vol. 52, no. 3, Sept. 2019, pp. 134-40, https://doi.org/10.5459/bnzsee.52.3.134-140.