Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Yamamoto Toru and Sato Masahiro,About small-sized nucleated fleshwater pearls similar to Akoya pearls,Abstract of Papers Presented at Annual Meeting of the Gemmological Society of Japan,,The Gemmological Society of Japan,2023,45,0,22-22,https://cir.nii.ac.jp/crid/1390015410760417024,https://doi.org/10.14915/gsj.45.0_22