Y. Oktavianus; M. Sofi; Lumantarna, E. . .; M. Maizuar; Mendis, P.; Duffield, C.; Rajabifard, A.; H. Widyastuti. Use of Non-Destructive Methods: Case Studies of Marine Port and Bridges Structures in Surabaya. Electron. J. Struct. Eng. 2018, 18, 13-22.