Teravaninthorn, S., & Raballand, G. (2009). Transport prices and costs in Africa: A review of the main international corridors. World Bank.
توثيق أسلوب شيكاغو (الطبعة السابعة عشر)Teravaninthorn, Supee, و Gaël Raballand. Transport Prices and Costs in Africa: A Review of the Main International Corridors. Washington, DC: World Bank, 2009.
توثيق جمعية اللغة المعاصرة MLA (الإصدار التاسع)Teravaninthorn, Supee, و Gaël Raballand. Transport Prices and Costs in Africa: A Review of the Main International Corridors. World Bank, 2009.