Amara Dar, Iram Riaz, and Jamil Anwar , Trans., “Microwave Assisted Urea Modified Bengal Gram Husk for the Batch Wise Removal of Methylene Blue from Aqueous Medium”, Pak. J. Anal. Environ. Chem., vol. 19, no. 2, pp. 153 – 159, Dec. 2018, doi: 10.21743/pjaec/2018.12.17.