Foreword by William R. Mead
Tiger Book International, 1995
Buku Referensi
G & C. Merriam Co., 1949
Buku Referensi
G. & C. Merriam , 1966
Buku Teks
Sallaberry, Christian, author
Wiley, 2013
Buku Teks
Arnaud Banos, Thomas Thevein
Wiley , 2011
Buku Teks