Facile preparation of carbon nanotubes/cellulose nanofibrils/manganese dioxide nanowires electrode for improved solid-sate supercapacitor performances by Siew, Xian Chin, Kam, Sheng Lau, Ginting, Riski Titian, Sin, Tee Tan, Poi, Sim Khiewcc, Chin, Hua Chia, Wongchoosuk, Chatchawal