Kann, Eduard
Kelly & Walsh , 1927
Buku Teks
Tang, Leang-Li
China United Press , 1936
Buku Teks
Chang Kia-Ngau
Massachusetts Institute of Technology, 1958
Buku Teks
Lin, W. Y.
Kelly and Walsh, Limited, 1936
Buku Teks
Tamagna, Frank M.
International Secretariat, Institute of Pacific Relation, 1942
Buku Teks