Abrokwah, Ama Agyeiwaa. “Price and Volatility Spillovers in the Electricity Reliability Council of Texas Day-Ahead Electricity Market”. International Journal of Energy Economics and Policy, vol. 8, no. 6, Oct. 2018, pp. 322-30, https://econjournals.org.tr/index.php/ijeep/article/view/7001.