Damen, Paul
Jan Mets/Passatempo, 1993
Buku Teks
edited by Stanley J. Kunitz, Howard Haycraft
Wilson, 1936
Buku Referensi
Robinson, Rolland
Macmillan, 1973
Buku Teks
Coleman, Verna
Melbourne University Press, Melbourne Univ. Press
Buku Teks
Porter, Hal
University of Queensland Press, 1987
Buku Teks