Homagai, Puspa Lal, and Hari Paudyal. 2009. “Adsorption Kinetics of Pb(II), Cd(II), Zn(II) and Fe(III) onto Saponified Apple Waste”. Journal of Nepal Chemical Society 23 (July):102-5. https://doi.org/10.3126/jncs.v23i0.2103.