%T Effect of Concentration of Citric Acid on Size and Optical Properties of
%T  Fluorescence Graphene Quantum Dots Prepared by Tuning Carbonization Deg
%T ree
%A Pichitchai Pimpang
%A Rattiphorn Sumang
%A Supab Choopun
%D 2021
%I Science Faculty of Chiang Mai University