Samrena Jabeen et al. 2025. Mobile Technologies in Predictive Maintenance for Industry 4.0: A Bibliometric Analysis of Research Trends, Knowledge Structure, and Future Directions. International Journal of Interactive Mobile Technologies (iJIM). 19, 22 (Nov. 2025), pp. 136–153. DOI:https://doi.org/10.3991/ijim.v19i22.58227.