Nadia Madi, Elissa, and Binyamin Yusoff. “Integrating Interval Agreement Approach (IAA) With TOPSIS in Multi-Criteria Group Decision Making (MCGDM)”. International Journal of Engineering & Technology, vol. 7, no. 3.28, Aug. 2018, pp. 163-9, https://doi.org/10.14419/ijet.v7i3.28.23412.