Dixson, Robert J.
Modern American English; Book 1
Regents Publishing, 1971
Buku Teks SO
Ferrer, Jami
Mosaic II: a listening/speaking skills book
Random House, 1985
Buku Teks SO
Wegmann, Brenda
Mosaic I. A reading skills book / Brenda Wegmann, Miki Prijic Knezevic.
Random House, 1985
Buku Teks SO
Jones, Leo
Let's talk 2 : teacher's manual
cambridge University Press , 2009
Buku Teks SO
O`Neill, Robert
Kernel lessons intermediate students book / Robert O'Neill, Roy Kingsbury, and Tony Yeadon
Longman, 1990
Buku Teks SO