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) Tadakatsu Yoneyama and Hideki Okada and Prapasri Chongpraditnum,Effects of vegetation and cultivation on δ13C values of soil organic carbon and estimation of its turnover in Asian tropics: A case study in Thailand,Soil science & plant nutrition,00380768,Tokyo : Japanese Society of Soil Science and Plant Nutrition,2006-02,52,1,95-102,https://cir.nii.ac.jp/crid/1524232505295959936,