N. A. Duong, P. L. Anh, T. T. Man and T. T. Lan, Research on the use of calcium carbide residue from the acetylene gas manufacturing factory to produce non-calcined brick, Vietnam J. Earth Sci. 42 (2020) 141–151. DOI: https://doi.org/10.15625/0866-7187/42/2/14954.