D. L. . Nguyen, T. T. . Nguyen, D. T. . Nguyen, and D. D. . Nguyen, “Comparative Assessment of Co2 Emission Factors Estimated Using Stack Flue Gas Measurement Data for Two Types of Brick Kiln: A Case Study in Phu Tho Province, Vietnam”, 80, vol. 2, no. 1, pp. 1–10, Mar. 2015.