Sofoluke, O., & Sofoluke, R. (2021). Twice as hard: Navigating Black stereotypes and creating space for success (First American edition.). DK Publishing.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Sofoluke, Opeyemi, و Raphael Sofoluke. Twice as Hard: Navigating Black Stereotypes and Creating Space for Success. First American edition. New York: DK Publishing, 2021.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Sofoluke, Opeyemi, و Raphael Sofoluke. Twice as Hard: Navigating Black Stereotypes and Creating Space for Success. First American edition. DK Publishing, 2021.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.