N. I. Abd, A. Mohammed Al-Mayah, and S. K. Muallah, “Microwave Pyrolysis of Water hyacinth for Biochar Production Using Taguchi Method”, IJET, vol. 7, no. 4.37, pp. 121–126, Dec. 2018, doi: 10.14419/ijet.v7i4.37.24086.