Erna Frida, Syahrul Humaidi, Fathi Marzuqi. UTILIZATION OF ACTIVATED CARBON FROM ELEPHANT GRASS (PENNISETUM PURPEREUM) AND MANGANESE DIOXIDE AS SUPERCAPACITOR ELECTRODES. MORFAI [Internet]. 2025 Jun. 12 [cited 2025 Jun. 21];5(4):1911-9. Available from: https://radjapublika.com/index.php/MORFAI/article/view/3146