著者名,論文名,雑誌名,ISSN,出版者名,出版日付,巻,号,ページ,URL,URL(DOI) Abdalmajeed A. M. A. Mohammed and Hiroto Takaguchi,Environmental Improvement Proposal of Sudan Building Codes to Solve Horizontal Expansion and Low-Population Density Problems in Khartoum,Journal of Asian urban environment,21897972,Tokyo : Asian Institute of Urban Environment,2016,,,85-90,https://cir.nii.ac.jp/crid/1521136281161860352,