A life in literacy
 Artikel Jurnal
Postlethwait, John H.
The nature of life
McGraw-Hill Publishing Company, 1989
 Buku Referensi
Levy, Marvin R.
Life & Health
Random House, 1984
 Buku Referensi
In Hun, author
Train of life
Foreign Languages Pub. House, 2014
 Buku Teks
Vertebrate life
William N. McFarland ...[et al.]
Macmillan, 1979
 Buku Teks
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