Chicago : The Modern Poetry Association
Majalah, Jurnal, Buletin
Jakarta The Lontar Foundation 1990
UI - Makalah dan Kertas Kerja
London :The Poetry Society Inc
Majalah, Jurnal, Buletin
Marquand, John P
New York : Pocket Books, 1940
Buku Teks
Cumming, EE
New York Grove Press 1954
Buku Teks