Wongsanga, K., S. Suwannapak, P. Sinlapates, and N. Chancharat. “Risks Hedging Technique from Gold Prices Fluctuation in Contract for Difference Trading”. KKU Research Journal (Graduate Studies) Humanities and Social Sciences, vol. 7, no. 1, May 2019, pp. 60-67, https://so04.tci-thaijo.org/index.php/gskkuhs/article/view/189926.