Zahraa Kadhim Abd Al-Hussain, Hayder M. Abdul Hameed 2022. Removal Lead Ions from Aqueous Solutions by Production of Local Natural Materials from Waste Tea and Coffee as an Adsorbent Material (Comparative Study). Pakistan Journal of Medical & Health Sciences. 16, 06 (Aug. 2022), 598. DOI:https://doi.org/10.53350/pjmhs22166598.