Basir, K. H., R. Mohd Raffi, H. Mahmud, and N. H. Marmaya. “The Role of Problem-Solving Ability Among Halal Entrepreneurs’ Startups in Brunei Darussalam”. Proceedings Borneo Islamic International Conference EISSN 2948-5045, Vol. 13, Sept. 2022, pp. 161-7, https://majmuah.com/journal/index.php/kaib1/article/view/269.