“DEFECT STUDY ON SINGLE STOREY REINFORCED CONCRETE BUILDING IN WEST SUMATRA: BEFORE AND AFTER 2009 WEST SUMATRA EARTHQUAKE”. GEOMATE Journal 20, no. 77 (January 28, 2021): 205–212. Accessed April 17, 2026. https://geomatejournal.com/geomate/article/view/457.