1. Microfacies and depositional environment of tertiary Tanjung Enim low rank coal, South Sumatra Basin, Indonesia;Amijaya;Int. J. Coal Geol.,2005
2. Standard Test Method for Microscopical Determination of the Reflectance of Vitrinite Dispersed in Sedimentary Rocks,2014
3. ASTM D2798-11a, Standard Test Method for Microscopical Determination of the Vitrinite Reflectance of Coal,2011
4. ASTM D2799-13, Standard Test Method for Microscopical Determination of the Maceral Composition of Coal,2013
5. ASTM D388-19a, Standard Classification of Coals by Rank,2019