Nainggolan-Gultom, T. St. Kalimuda
Keats and Amir Hamzah as romantic poets in their sense of beauty
Fakultas Ilmu Pengetahuan dan Budaya Universitas Indonesia, 1973
 UI - Skripsi (Membership)
A Comparison of certain aspects of the medieval poem 'Sir Orfoe' and 'Shaucer's Franklin's tale
Fakultas Ilmu Pengetahuan dan Budaya Universitas Indonesia, 1962
 UI - Skripsi (Membership)
Blackwood, R.L.
Keats
Auckland Whitcombe [t.th.]
 Buku Teks
Siler, Jack
Poetic language and political engagement in the poetry of Keats
Routledge , 2008
 Buku Teks
Chandra Hasan
Unsur-unsur romantisme dalam puisi Robert Frost
Fakultas Ilmu Pengetahuan dan Budaya Universitas Indonesia, 1984
 UI - Skripsi (Membership)