@article{ijtech-364, title={Stoichiometry of Cu(II) Ion Extraction with di-2-ethylhexylphosphoric acid Dissolved in Waste Palm Cooking Oil}, author={Alif Azwan Abdul Wahab,Siu Hua Chang,Ayub Md Som}, volume={7}, number={5}, year={2016}, month={Jul}, pages={778-785}, DOI={https://doi.org/10.14716/ijtech.v7i5.3292}, journal={International Journal of Technology}, ISSN={2087-2100}}