@incollection{Ahmad19, author = {Mohd Afnan Ahmad and Shafirah Samsuri and Nurul Aini Amran}, title = {Methods for Enhancing Recovery of Heavy Crude Oil}, booktitle = {Processing of Heavy Crude Oils}, publisher = {IntechOpen}, address = {Rijeka}, year = {2019}, editor = {Ramasamy Marappa Gounder}, chapter = {2}, doi = {10.5772/intechopen.90326}, url = {https://doi.org/10.5772/intechopen.90326} }