., A., ., W., Rojiyyah, I., Efendi, R., & Agustin Wulandari, R. (2023). Design of Flipped Classroom Learning in Vocational Education to improve HOT Skills in the era of the Industrial Revolution 4.0. KnE Social Sciences, 8(4), 106–115. https://doi.org/10.18502/kss.v8i4.12888