Hideo Takabatake, Yukihiko Kitada, Izuru Takewaki, Akiko Kishida
Springer Nature, 2019
eBooks
Chung, Han-sook
Dong-suh-Munhak-sa, 1990
Buku Teks SO
Hyde, William A.
National Underwriter, 1969
Buku Teks
Buku Teks
OBrien, Eugene J.
E & FN spon, 1999
Buku Teks SO