Haque, F., Rahman, M.M., Al Mahmud, M.A., Reza, M.S., Akter, M. and Karim, A.Z. 2018. Chemically Converted Graphene as a Hole Transport Layer (HTL) Inorganic Photovoltaics (OPVS). Engineering International. 6, 1 (Dec. 2018), 7–20. DOI:https://doi.org/10.18034/ei.v6i1.170.