Hajar Halili, Siti, Norharyanti Mohsin, Zamzami Zainuddin, Juliana Othman, and Shukri Sulaiman. 2024. “Designing the Open-Badges Guideline Based on the Fuzzy Delphi Method”. Edelweiss Applied Science and Technology 8 (4):1841-55. https://doi.org/10.55214/25768484.v8i4.1556.