Castillo, F., E. Tan, and A. Lee. “Integrating Ubiquitous Language Learning into the Workplace: A Lifelong Learning Model for Corporate Employees in Multinational Companies”. International Journal of Language and Ubiquitous Learning, vol. 3, no. 4, Jan. 2026, pp. 169-7, doi:10.70177/ijlul.v3i4.3006.