Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) KOIZUMI NAOKAZU,Polar character of molecules and some related molecular properties,CHEMICAL EDUCATION,2432-6542,The Chemical Society of Japan,1971,19,3,191-195,https://cir.nii.ac.jp/crid/1390282681074141824,https://doi.org/10.20665/kagakukyouiku.19.3_191