Belhaj, A.F. and Elraies, K.A. and Mahmood, S.M. and Zulkifli, N.N. and Akbari, S. and Hussien, O.S.E.  (2020) The effect of surfactant concentration, salinity, temperature, and pH on surfactant adsorption for chemical enhanced oil recovery: a review.  Journal of Petroleum Exploration and Production Technology, 10 (1).  pp. 125-137.  ISSN 21900558