Young, Anthony, author
Oxon CAB International, 1994
Buku Teks
Artikel Jurnal
Bennett, H. H. (Hugh Hammond), 1881-1960, author
McGraw-Hill, 1955
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Lisa Larasati, author
Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Indonesia, 2009
UI - Skripsi (Open)
Van Dersel, William Richard, author
Oxford University Press, 1946
Buku Teks