1. Characterization of Polarity-Based Asphaltene Subfractions
2. Wattana, P.Precipitation and characterization of petroleum asphaltenes. Ph.D. Thesis, University of Michigan, Ann Arbor, MI, 2004.
3. Hammami, A.; Ratulowski, J.InAsphaltenes, Heavy Oils, and Petroleomics;Mullins, O. C.; Sheu, E. Y.; Hammami, A.; Marshall, A. G., Eds.Springer:New York, 2007; pp617–660.