“Spatial Analysis of Solar Radiation in the Al-Butnan Region of Libya Using the H(h)_m and H(i_opt)_m Indices During the Period 2005–2023”. jornal of the libyan geographical society 7, no. 2 (October 1, 2026): 85–56. Accessed October 1, 2026. https://jlgs.ly/ojs/index.php/ojsdata/article/view/139.