Darmawan, M. S. .; Yuyun Tajunnisa; Suprobo, . P. .; Sutrisno, W.; Wildan Aziz, M. . COMPARATIVE STUDY OF FLEXURAL PERFORMANCE OF GEOPOLYMER AND PORTLAND CEMENT CONCRETE BEAM USING FINITE ELEMENT ANALYSIS. INTERNATIONAL JOURNAL OF GEOMATE 2022, 23, 1-9.