Zaabar, Nuralya Natashah, and AZILA MD SUDIN. “A Constructive Heuristic Continuous Approach for Solving Uncapacitated Location-Allocation Problem With Zone-Dependent Fixed Cost”. Enhanced Knowledge in Sciences and Technology, vol. 6, no. 1, Aug. 2026, pp. 235-44, https://periodical.uthm.edu.my/index.php/ekst/article/view/22418.