Engriyani, E. (2008). The impact of corporate level strategy on company performance: A case study of BP Malaysia. Management Centre, International Islamic University Malaysia.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Engriyani, Eny. The Impact of Corporate Level Strategy on Company Performance: A Case Study of BP Malaysia. Gombak: Management Centre, International Islamic University Malaysia, 2008.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Engriyani, Eny. The Impact of Corporate Level Strategy on Company Performance: A Case Study of BP Malaysia. Management Centre, International Islamic University Malaysia, 2008.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.