Mwaanga, Phenny, et al. “THE PH DEPENDENCE OF NATURAL ORGANIC MATTER SORPTION TO NANOPARTICLES AND ITS ABILITY TO STABILIZENANOPARTICLES IN AQUEOUS SOLUTIONS”. European Scientific Journal, ESJ, vol. 10, no. 10, May 2014, doi:10.19044/esj.2014.v10n10p%p.