Chemical Demulsification of Water-in-Crude Oil Emulsions Abdurahman ; Nour, H. ; Yunus, Rosli Mohd ; Jemaat, Zulkifly Abstract Publication: Journal of Applied Sciences Pub Date: February 2007 DOI: 10.3923/jas.2007.196.201 Bibcode: 2007JApSc...7..196A