Duong, Nguyen Anh, et al. “Research on the Use of Calcium Carbide Residue from the Acetylene Gas Manufacturing Factory to Produce Non-Calcined Brick”. <i>Vietnam Journal of Earth Sciences</i>, vol. 42, no. 2, May 2020, pp. 141-5, doi:10.15625/0866-7187/42/2/14954.