Christie, Francis
Language education / Francis Christie
Oxford University Press, 1989
 Buku Teks
Rivers, Wilga M.
Speaking in many tongues: essays in foreign-language teaching
Cambridge University Press, 1985
 Buku Teks
Sidauruk, Juniato
Penerapan Form-Focused Instruction pada kelas Speaking dan pengaruhnya bagi pembelajar bahasa asing = The use of Form-Focused Instruction in Speaking class and its effects on foreign language learners / Sidauruk, Juniato
2013
 UI - Tesis (Membership)
Language and language learning
edited by Albert H. Marckwardt
National Council of Teachers of English, 1968
 Buku Teks
Approaches to teaching foreign languages
edited by M.G. Hesse
North-Holland, 1975
 Buku Teks