Nawaz, R., Arshad, M., Shahzad Sarfraz, M., Waseem Ashraf, M., Umar Hayyat, M., Mahmood, R., & Parkpian, P. (2014). Interactions Between Acidic (Al3+, Fe2+) and Basic (Ca2+, Mg2+) Cations in Oxisol and Ultisol under Acidification Induced by Simulated Acid Rain. Asian Journal of Chemistry, 26(15), 4794–4800. https://doi.org/10.14233/ajchem.2014.16229