Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) HIGASI Keniti,Important Concepts for the Chemical Bond Changed and Formed by the VB and MO Methods,CHEMICAL EDUCATION,03862151,The Chemical Society of Japan,1980,28,4,313-318,https://cir.nii.ac.jp/crid/1390001206095085184,https://doi.org/10.20665/kagakukyouiku.28.4_313