L. Sa’adu, S. B. Muhammad, Abdullahi, I., S. B. Muhammad, A. B. Isah and Y. Yusuf 2022. Metal-Based Oxides/Hydroxides and Conducting Polymers as Materials for Ultracapacitors – A Simple Communication. International Journal of Science for Global Sustainability. 8, 2 (Jul. 2022), 3. DOI:https://doi.org/10.57233/ijsgs.v8i2.336.