Georgiev Venelin & Longdom Publishing. Methods and Techniques for Assessment of Corruption Risks in Defence and Security.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Georgiev Venelin و Longdom Publishing. Methods and Techniques for Assessment of Corruption Risks in Defence and Security.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Georgiev Venelin و Longdom Publishing. Methods and Techniques for Assessment of Corruption Risks in Defence and Security.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.