Kusumaningtyas, R., 		Maulina, W., & 		Supriyadi, S.
(2018).
 Characterization of Carbon Derived from Water Hyacinth as a Renewable Energy Sources.
<em>Computational And Experimental Research In Materials And Renewable Energy, 1</em>(1), 6-10.
doi:10.19184/cerimre.v1i1.19543