Hughes, Rebecca, author
Pearson Education, 2002
Buku Teks
Hyland, Ken, author
Longman, 2002
Buku Teks
S. Venkataiah, editor
Anmol Publications, 2001
Buku Teks
Hatim, Basil, author
Pearson Education , 2001
Buku Teks
Hartmann, Reinhard R.K., author
Pearson Education, 2001
Buku Teks