Tajunnisa, Y. ., Bayuaji, R. ., Arrafid, R. N. ., & Nurhadi, H. . (2025). Rheology Analysis of 3D Printed Geopolymer Based on High Calcium Fly Ash. IPTEK The Journal of Engineering, 10(3), 196–204. https://doi.org/10.12962/j23378557.v10i3.a21071