Fathaddin, M. T., Nugrahanti, A., Buang, P. N., & Elraies, K. A. (2011). SURFACTANT-POLYMER FLOODING PERFORMANCE IN HETEROGENEOUS TWO-LAYERED POROUS MEDIA. IIUM Engineering Journal, 12(1), 31–38. https://doi.org/10.31436/iiumej.v12i1.37