1. Synthesis and performance analysis of oil palm ash (OPA) based adsorbent as a palm oil bleaching material;Acquah;J. Clean. Prod.,2016
2. Adsorptive removal of colour pigment from palm oil using acid activated Nteje clay. Kinetics, equilibrium and thermodynamics;Ajemba;Physicochem. Probl. Miner. Process.,2013
3. Official Methods and Recommended Practices of the American Oil Chemists’ Society .Champaign,1997
4. Official Methods and Recommended Practices of the American Oil Chemists’ Society. Champaign,2009
5. Official Methods and Recommended Practices of the American Oil Chemists’ Society, Champaign,2009