Simeon, O., Abasi-Obot, I. E. ., & Markson, I. . (2019). Impact of the Optimal Tilt Angle on the Solar Photovoltaic Array Size and Cost for a 100 kWh Solar Power System in Imo State. International Journal of Sustainable Energy and Environmental Research, 8(1), 29–35. https://doi.org/10.18488/journal.13.2019.81.29.35