Analisa XRD Terhadap Perubahan Struktur Dan Kristalinitas Karbonisasi Batubara Sawahlunto – Sijunjung Sumatera Barat: XRD Analysis of Changes in the Structure and Crystallinity of Sawahlunto - Sijunjung West Sumatra Coal Carbonization. Talenta Conference Series: Science and Technology (ST), [S. l.], v. 2, n. 1, p. 88–91, 2019. DOI: 10.32734/st.v2i1.321. Disponível em: https://talentaconfseries.usu.ac.id/index.php/st/article/view/321. Acesso em: 1 may. 2026.