*Ballhaus, Rebecca; Schlesinger, Jacob M. (August 10, 2018). [https://www.wsj.com/articles/trump-vows-to-double-metals-tariffs-on-turkey-as-dispute-escalates-over-detained-american-1533906681 Trump Vows to Double Metals Tariffs on Turkey as Dispute Escalates Over Detained American]. ''The Wall Street Journal''. Retrieved August 10, 2018. | *Ballhaus, Rebecca; Schlesinger, Jacob M. (August 10, 2018). [https://www.wsj.com/articles/trump-vows-to-double-metals-tariffs-on-turkey-as-dispute-escalates-over-detained-american-1533906681 Trump Vows to Double Metals Tariffs on Turkey as Dispute Escalates Over Detained American]. ''The Wall Street Journal''. Retrieved August 10, 2018. |