Thi, Tho Do, Khuong Dinh Gia, and Hai Nguyen Hoang. “Input Energy Price Volatility and Profitability in Vietnam’s Steel Industry: A Panel Data Approach”. International Journal of Energy Economics and Policy 15, no. 6 (October 12, 2025): 523–530. Accessed December 5, 2025. https://econjournals.com/index.php/ijeep/article/view/20549.