Driesch, Hans
Verlag von Quelle, 1928
Buku Teks
FMIPA-Universitas Negeri Malang dan Perhimpunan Biologi Indonesia Cabagn Jawa Timur, 2009
Majalah, Jurnal, Buletin
Arya, Jagdish C.
Prentice-Hall, 1979
Buku Teks
Silverstein, Alvin
Rinehart Press , 1974
Buku Teks
Rubinow, S. I.
Society for Industrial and Applied Mathematics, 1973
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