Sun, F., Cuaycong, M. H., Craig, C. A., Wallrath, L. L., Locke, J., & Elgin, S. C. R. (2000). The fourth chromosome of Drosophila melanogaster: Interspersed euchromatic and heterochromatic domains. The National Academy of Sciences.

Sun, Fang-Lin, Matthew H. Cuaycong, Carolyn A. Craig, Lori L. Wallrath, John Locke, et Sarah C. R. Elgin. The Fourth Chromosome of Drosophila Melanogaster: Interspersed Euchromatic and Heterochromatic Domains. The National Academy of Sciences, 2000.

Sun, Fang-Lin, et al. The Fourth Chromosome of Drosophila Melanogaster: Interspersed Euchromatic and Heterochromatic Domains. The National Academy of Sciences, 2000.