Pratama, Aldi Adi, et al. “ANALYSIS OF THE LEVEL OF MENTAL HEALTH OF WORKERS USING THE BOGOR – JAKARTA ELECTRIC TRAIN TRANSPORTATION WITH WORK PRODUCTIVITY”. Jurnal Penelitian Keperawatan Kontemporer, vol. 3, no. 2, Aug. 2023, doi:10.59894/jpkk.v3i2.493.