Life
by Ricki Lewis ... [and others]
McGraw-HIll, 2002
Buku Teks SO
Attenborough, David
The life of mammals: life in the trees
BBC Worldwide Limited, 2004
Multimedia
Black, Kenneth
Life insurance
Prentice-Hall, 1994
Buku Teks
A life in literacy
Artikel Jurnal
Postlethwait, John H.
The nature of life
McGraw-Hill, 1989
Buku Referensi