Gershowitz H (September 1959). "The Diego factor among Asiatic Indians. Apaches and West African Negroes: blood types of Asiatic Indians and Apaches". American Journal of Physical Anthropology. 17 (3): 195–200. doi:10.1002/ajpa.1330170305. hdl:2027.42/37466. PMID13827615.
Heuft HG, Zeiler T, Zingsem J, Eckstein R (April 1993). "Sporadic occurrence of Diego A antigens and antibodies in Berlin". Infusionstherapie und Transfusionsmedizin. 20 (1–2): 23–5. doi:10.1159/000222801. PMID8504238.
Gershowitz H (September 1959). "The Diego factor among Asiatic Indians. Apaches and West African Negroes: blood types of Asiatic Indians and Apaches". American Journal of Physical Anthropology. 17 (3): 195–200. doi:10.1002/ajpa.1330170305. hdl:2027.42/37466. PMID13827615.
Gershowitz H (September 1959). "The Diego factor among Asiatic Indians. Apaches and West African Negroes: blood types of Asiatic Indians and Apaches". American Journal of Physical Anthropology. 17 (3): 195–200. doi:10.1002/ajpa.1330170305. hdl:2027.42/37466. PMID13827615.
Heuft HG, Zeiler T, Zingsem J, Eckstein R (April 1993). "Sporadic occurrence of Diego A antigens and antibodies in Berlin". Infusionstherapie und Transfusionsmedizin. 20 (1–2): 23–5. doi:10.1159/000222801. PMID8504238.
Dean L. Blood Groups and Red Cell Antigens [Internet]. Bethesda (MD): National Center for Biotechnology Information (US); 2005. Chapter 11, The Diego blood group. Available from: https://www.ncbi.nlm.nih.gov/books/NBK2273/