Ikegwuonu, G. (1988). Management of material and production problems arising from the technological and price developments in semiconductor devices: A study of Finnish electronics manufacturers. Teknillinen korkeakoulu.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Ikegwuonu, Godwin. Management of Material and Production Problems Arising from the Technological and Price Developments in Semiconductor Devices: A Study of Finnish Electronics Manufacturers. Otaniemi: Teknillinen korkeakoulu, 1988.
توثيق جمعية اللغة المعاصرة MLA (الطبعة الثامنة)Ikegwuonu, Godwin. Management of Material and Production Problems Arising from the Technological and Price Developments in Semiconductor Devices: A Study of Finnish Electronics Manufacturers. Teknillinen korkeakoulu, 1988.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.