liliwarti, liliwarti, et al. “LIQUEFACTION ANALISYS AND PREVENTION USING CEMENT COLUMN METHOD”. Jurnal Jalan Jembatan, vol. 35, no. 2, Dec. 2018, pp. 140-7, https://binamarga.pu.go.id/jurnal/index.php/jurnaljalanjembatan/article/view/244.