Wijaya, A. S., Manafe, L. A., & Chamid, A. (2026). INSTAGRAM DIGITAL MARKETING IN THE PUBLIC SECTOR: A CASE STUDY AT THE VOCATIONAL AND PRODUCTIVITY TRAINING CENTER SIDOARJO. Journal Informatic, Education and Management (JIEM), 8(2), 826-833. https://doi.org/10.61992/jiem.v8i2.441