Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) HIGO Kazuko and MURAKAMI Tomoko and HAYASHI Kazuya and TERAHARA Norihiko and TSUKUI Akio,The Color of Cowpea Boiling Extract and Identification of Cowpea Peel and Cowpea Boiling Extract Anthocyanin Pigments,Food Preservation Science,13441213,Japan Association of Food Preservation Scientists,2003,29,3,159-163,https://cir.nii.ac.jp/crid/1390282680095946112,https://doi.org/10.5891/jafps.29.159