Tumampos, S. B., De Luna, M. D. G., & Kan, C. (2015). Removal of copper and lead ions from aqueous solutions by adsorbents derived from groundwater treatment sludge. College of Engineering, University of the Philippines Diliman.

Tumampos, Stephanie B., Mark Daniel G. De Luna, and Chi-Chuan Kan. Removal of Copper and Lead Ions from Aqueous Solutions by Adsorbents Derived from Groundwater Treatment Sludge. Quezon City: College of Engineering, University of the Philippines Diliman, 2015.

Tumampos, Stephanie B., et al. Removal of Copper and Lead Ions from Aqueous Solutions by Adsorbents Derived from Groundwater Treatment Sludge. College of Engineering, University of the Philippines Diliman, 2015.