Hartono, Mohamad Budi, et al. “Analysis of Defficiencies in Building Structure As a Contributing Factor to Building Failure”. International Journal of Sciences: Basic and Applied Research (IJSBAR), vol. 49, no. 1, Jan. 2020, pp. 62-73, https://gssrr.org/JournalOfBasicAndApplied/article/view/10644.