Fitria Jumarni, Ratih, and Nurnadiah Zamri. “An Integration of Fuzzy TOPSIS and Fuzzy Logic for Multi-Criteria Decision Making Problems”. International Journal of Engineering & Technology, vol. 7, no. 2.15, Apr. 2018, pp. 102-6, https://doi.org/10.14419/ijet.v7i2.15.11362.