«A Survey of ABO, Rhesus (D) Antigen and Haemoglobin Genes Variants in Oyo State, Nigeria» (2021) Nigerian Journal of Physiological Sciences, 30(1), s. 125–129. Tilgjengelig på: https://ojshostng.com/index.php/njphysiologicalsciences/article/view/1843 (åpnet: 4 april 2026).