Usman, Mustofa, Wamiliana, Edwin Russel, Dian Kurniasari, Widiarti, and Faiz A.M Elfaki. “Modeling Vector Error Correction With Exogeneous (VECMX) Variable for Analyzing Nonstationary Variable Energy Used and Gross Domestic Product (GDP)”. Science and Technology Indonesia 10, no. 1 (January 1, 2025): 283–293. Accessed September 17, 2026. https://www.sciencetechindonesia.com/index.php/jsti/article/view/1555.