Crossbreeding with the Sahiwal, Sindhi, and Friesian
References
Bett, R., Okeyo, M., Malmfors, B., Johansson, K., Agaba, M., Kugonza, D., Bhuiyan, A. K. F. H., Filho, A., Mariante, A., Mujibi, F., & Philipsson, J. (2013). Cattle Breeds: Extinction or Quasi-Extant? . Resources, 2(3), 335–357. https://doi.org/10.3390/resources2030335
Porter, V., & Mason, I. L. (2002). Mason’s World Dictionary of Livestock Breeds, Types and Varieties (5th ed.). Wallingford, Oxfordshire, UK: CABI Publishing.
Porter, V., Alderson, L., Hall, S. J. G., & Sponenberg, D. P. (2016). Mason’s World Encyclopedia of Livestock Breeds and Breeding: 2 Volume Pack (1st ed.). Wallingford, Oxfordshire, UK: CABI.