Abu-Bakar, S. H., Muhammad-Sukki, F., Freier, D., Ramirez-Iniguez, R., Mallick, T. K., Munir, A. B., Yasin, S. H. M., Mas'ud, A. A., & Yunus, N. M. (2015). Optimisation of the performance of a novel rotationally asymmetrical optical concentrator design for building integrated photovoltaic system. Energy, 90(Part 1), 1033-1045. https://doi.org/10.1016/j.energy.2015.07.133