“THEORETICAL STUDY FOR THE ADSORPTION OF LINEAR PROPADECYL BENZENE SULFONATE (LAS) ON BENTONITE WHICH MODIFIED BY THREE SURFACE ACTIVE MATERIALS”. Al-Nahrain Journal of Science, vol. 12, no. 3, Aug. 2018, pp. 8-15, https://mail.anjs.edu.iq/index.php/anjs/article/view/1201.