2019. 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). 2, 1 (Jan. 2019), 88–91. DOI:https://doi.org/10.32734/st.v2i1.321.