Bt Muhamad Jais, Nur Najiha, et al. “Inventory of Non-Timber Species in Ayer Hitam Utara Forest Reserve, Johor”. Journal of Sustainable Natural Resources, vol. 3, no. 2, Feb. 2023, pp. 34-40, https://penerbit.uthm.edu.my/ojs/index.php/jsunr/article/view/10603.