Chang, S. H. ., S. F. . Abdul Halim, M. I. . Abdul Halim, and N. . Morad. “Green approach for selective Cu(II) recovery from aqueous solutions: Efficient separation from Ni(II) and Co(II) with organic phase regeneration”. Asia-Pacific Journal of Science and Technology, vol. 30, no. 06, Nov. 2025, pp. APST-30, doi:10.14456/apst.2025.96.