MARBUN, J. Determination Analysis Of World Coal Price Fluctuations Using The Vector Error Correction Model (VECM) Method. Eduvest - Journal of Universal Studies, [S. l.], v. 5, n. 4, p. 3876–3893, 2025. DOI: 10.59188/eduvest.v5i4.44777. Disponível em: http://www.eduvest.greenvest.co.id.submitjurnal.id/index.php/edv/article/view/44777. Acesso em: 5 jul. 2025.