Arini Dennis Prasetyo
Fakultas Ilmu Pengetahuan Budaya Universitas Indonesia, 1983
UI - Skripsi Membership
Hope, Alec Derwent, 1907-2000
Oxford University Press, 1975
Buku Teks SO
Woro Aryandini Sumaryoto
Universitas Indonesia, 1990
UI - Tesis Membership
Walker, Shirley
Oxford University Press, 1982
Buku Referensi
Scott, William Neville
University of Queensland Press, 1967
Buku Teks SO