Sobahan, M. A., M. S. Islam, R. M. Yunus, and M. A. Karim. “Evaluation of Novel Bio-Friendly Two-Step Process in the Removal of Heavy Metals from the Wastewater”. Bangladesh Journal of Botany, vol. 44, no. 4, Oct. 2018, pp. 571-9, doi:10.3329/bjb.v44i4.38572.