Maningas, Jona Anne Elaine, et al. “Provider Availability, Learner Participation, and Certification Outcomes in Philippine Technical and Vocational Education and Training (TVET): A Regional Analysis, 2023–2025”. Journal of Interdisciplinary Perspectives, vol. 4, no. 10, Sept. 2026, pp. 250-63, doi:10.69569/jip.2026.431x.