ANALISIS KINERJA STRUKTUR GEDUNG BERTINGKAT DENGAN METODE RESPON SPECTRUM DITINJAU PADA DRIFT DAN DISPLACEMENT MENGGUNAKAN SOFTWARE ETABS: (Performance Analysis of Building Structural With Spectrum Response Method Reviewed on Management and Control Using ETABS Software). infrastruktur 2019, 4 (1), 65-71. https://doi.org/10.35814/infrastruktur.v4i1.721.