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Fortuna, B., I. Sucita, and R. Rizal. “Analisis Waktu Dan Biaya Perbandingan Erection Box Girder Menggunakan Metode Crane Dan Launcher”. Jurnal Ilmiah Rekayasa Sipil, Vol. 18, no. 2, Oct. 2021, pp. 100-12, doi:10.30630/jirs.v18i2.627.