@phdthesis{oai:nagoya.repo.nii.ac.jp:00028599,
 author = {NGUYEN, Thi Hong Ngoc and グエン, ティ ホン ゴック},
 month = {Sep},
 school = {名古屋大学, Nagoya University},
 title = {Livelihood structure changes in the northwestern mountainous region of Vietnam},
 year = {2019}
}