Galindo, Michelle, author
Braun, 2012
Buku Referensi
Trulove, James Grayson, author
HarperCollins, 2001
Buku Referensi
Alexander Tzonis, editor ; Liane Lefaivre, editor ; Bruno Stagno, editor
Wiley-Academy,, 2001
Buku Teks
C.P. Kukreja
McGraw-Hill, 1978
Buku Teks
Sharmi Ranti, author
Djambatan, 1994
Buku Referensi