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Timalsina, S., Oli, H.B., Aryal, S., Shrestha, S., Regmi, P., Panthi, K., Shrestha, R.L. and Bhattarai, D.P. 2024. Removal of Pb(II) from aqueous solution using xanthate modified waste walnut shells. Rajarshi Janak University Research Journal. 2, 1-2 (Dec. 2024), 8–24. DOI:https://doi.org/10.3126/rjurj.v2i1-2.72264.