Purwanto, Finto, Didik Nurhadi, and Widiyanti Widiyanti. “Contribution of the Heavy Equipment Concentration Industry Class Program to Work Readiness in Line With Industry 4.0 Requirements at Vocational High School”. Edunesia : Jurnal Ilmiah Pendidikan 6, no. 3 (November 27, 2025): 2015–2027. Accessed July 15, 2026. https://edunesia.org/edu/article/view/1525.