(Inggris) Anthony JF Griffiths, Jeffrey H Miller, David T Suzuki, Richard C Lewontin, and William M Gelbart (2000). An Introduction to Genetic Analysis. University of British Columbia, University of California, Harvard University (edisi ke-7). W. H. Freeman. hlm. Historical development of the chromosome theory. ISBN0-7167-3520-2. Diakses tanggal 2010-08-13.Pemeliharaan CS1: Banyak nama: authors list (link)
(Inggris) Tom Strachan, Andrew P Read (1999). Human Molecular Genetics. University of Newcastle, University of Manchester (edisi ke-2). Wiley-Liss. hlm. Figure 2.12. Development of the germ line. ISBN1-85996-202-5. Diakses tanggal 2010-08-10.