Muhammad Rafi Wira Pratama, and Valensio Derren Permana and Kevin Deniswara. “Exploring the Interplay of Nickel and Gold Price Dynamics an Their Impact on Cryptocurrency Markets: A Comprehensive Analysis From 2018 to October 2023”. Kurdish Studies, vol. 12, no. 2, Feb. 2024, pp. .5652-5662, https://kurdishstudies.net/menu-script/index.php/KS/article/view/2724.