Zulkifli SLA, Omar SS, Ariffin ZZ, Mahadi N, Yaakop AY. A Review of Leadership Approaches in the Industrial Revolution of 4.0 Era. oj-tp. 2021;6(2):21-27. Accessed July 30, 2024. https://penerbit.uthm.edu.my/ojs/index.php/oj-tp/article/view/8648