Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) "Elbatawi, Ibrahim E. A. and Mohri, Kentaro and Namba, Kazuhiko",Solar Energy Required and Predicted in Okayama and Giza (Egypt),岡山大学農学部学術報告,0474-0254,岡山大学農学部,1998-02,87,1,187-193,https://cir.nii.ac.jp/crid/1050002212334294144,