Zahra Shafiei, Production and characterization of biosurfactant from local isolate and application in removal of crude oil from sand / Zahra Shafiei. - xviii, 157 pages : illustrations ; 30 cm. Thesis (PhD.) - Universiti Kebangsaan Malaysia, 2015. References : page [124]-140. Subjects--Corporate Names: Universiti Kebangsaan Malaysia--Dissertations. Subjects--Topical Terms: Biosurfactants.Dissertations, Academic--Malaysia.