Yoana Gita Pradnya Lengari et al. 2026. Exploring the Factors of Focus Group Discussions in Developing Vocational Students’ Speaking Skills. Jurnal Penelitian Rumpun Ilmu Teknik. 5, 3 (Aug. 2026), 01–09. DOI:https://doi.org/10.55606/juprit.v5i3.6769.