Saputro, A. G., Pradana, M. R. ., Maulana, A. L. ., Agusta, M. K. . and Dipojono, H. K. (2021) “CO2 Hydrogenation Mechanism on Graphene-supported Subnanometer Ni7 Cluster ”, Journal of Research and Development on Nanotechnology, 1(1), pp. 18-22. doi: 10.5614/jrdn.2021.1.1.16425.