Ryemshak, S.A., Jauro, A., Chindo, I.Y., Ekanem, E.O. and Ayeni, F.A. 2015. By-Product from Pyrolysis of Tar-Sand in Blend with Gray-King Assessed Nigerian Coals for Coke Production. International Journal of Chemistry and Materials Research. 3, 11 (Nov. 2015), 154–164. DOI:https://doi.org/10.18488/journal.64/2015.3.11/64.11.154.164.