“Synthesis and Characterization of Nanoporous Carbon from Sugarcanne Bagasse (Saccharum Officianarum) With ZnCl2 Activator by Ultrasonic Irradiation As Electrochemical Energy Storage Material”. 2015. Jurnal Akta Kimia Indonesia (Indonesia Chimica Acta) 8 (1): 42-51. https://doi.org/10.70561/ica.v8i1.2480.