The cultural magazine of pro helvetia,
Majalah, Jurnal, Buletin
Laboratory of Microbiology Departement of Biology University of Indonesia, 2003
Buku Teks
William Bawen Sarles ...[et.al.]
Harper & Row, 1956
Buku Teks
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Buku Teks
Pelczar, Michael J.
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Buku Teks