Allen, W. Stannard
Living English structure : a practise book for foreign students
Longman, 1974
 Buku Teks SO
Rr. Fitri Arini
Kesantunan berbahasa dalam percakapan mahasiswa UI program studi Inggris 2009 = Politeness strategies in conversations among UI students of English studies 2009
Fakultas Ilmu Pengetahuan Budaya Universitas Indonesia, 2013
 UI - Makalah dan Kertas Kerja
Smith, B.T. Knight
Idiomatic English of the present day: in practical dialogue form for the use of foreign students
J.M. Dent & Sons, 1948
 Buku Teks SO
Koolhaas, Rem
Rem Koolhaas : conversations with students / [edited by Sanford Kwinter].
Rice University, School of Architecture ; New York : Princeton Architectural Preess, 1996
 Buku Teks
King, F.W
English business letters : commercial correspondence for foreign students/F.W. King, D. Ann Cree.
Longmans , 1979
 Buku Teks