Ur, Penny
A course in language teaching : practice and theory
Cambridge University Press, 1991
 Buku Teks
Rivers, Wilga M.
Communicating naturally in a second language : theory and practice in language teaching
Cambridge University Press, 1994
 Buku Teks
Chastain, Kenneth
The development of modern language skills: theory to practice / by Kenneth Chastain
Rand McNally, 1971
 Buku Teks
Ur, Penny
A course in language teaching : practice and theory
Cambridge University Press, 2006
 Buku Teks
Language and language learning
edited by Albert H. Marckwardt
National Council of Teachers of English, 1968
 Buku Teks SO