@book{oai:toyo-bunko.repo.nii.ac.jp:00003629,
 author = {YAMAGATA, Mariko and YAMAGATA, Mariko},
 month = {},
 publisher = {Toyo Bunko},
 title = {Construction of Linyi Citadels: The Rise of Early Polity in Vietnam},
 year = {2017}
}