K. Yuwawech and J. Wootthikanokkhan, “EVA Film Reinforced with Acid Functionalized Graphene Nanoplatelets as a Transparent Barrier Layer to Enhance the Durability of Solar Cells”, Int. J. Automot. Mech. Eng., vol. 16, no. 1, pp. 6301–6318, Mar. 2019.