Nwanze, David E., Cletus Onwubuoya, and Ken Onyenike. “On the Measures of Possibility and Probability of Uncertainty: A Fuzzy Theoretical Approach”. Global Journal of Engineering and Technology Research 1, no. 04 (December 3, 2025): 174–179. Accessed September 28, 2026. https://gjetr.ep-journals.org/index.php/gjetr/article/view/25.