New York : Chinese News service
Majalah, Jurnal, Buletin
Taiwan : Kwang Hwa Publishing (USA), Inc
Majalah, Jurnal, Buletin
Schmidt, Helmut
Godesberg : Neue Gesellschaft, 1975
Buku Teks
Jakarta : Yayasan Bapora
Majalah, Jurnal, Buletin
Sydney : University of Sydney
Majalah, Jurnal, Buletin