?url_ver=Z39.88-2004&rft_id=10.1088%2F1755-1315%2F1003%2F1%2F012010&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.aulast=Saparin&rft.aufirst=M.A.&rft.au=Saparin%2C+M.A.&rft.date=2022&rft.title=Review+on+the+Graptolites+from+the+Lituigraptus+convolutus+and+Stimulograptus+sedgwickii+biozones+of+Pulau+Langgun%2C+Langkawi%2C+Malaysia&rft.issn=17551307&rft.genre=proceeding