priyatama, aditya nanda et al. 2018. THE INFLUENCE OF SELF-EFFICACY, OPTIMISM, HOPE, AND RESILIENCE ON WORK ENGAGEMENT WITH MEDIATOR VARIABLE OF PERCEIVED ORGANIZATIONAL SUPPORT ON LECTURERS OF PUBLIC HIGHER EDUCATION INSTITUTIONS IN SURAKARTA. Journal of Educational, Health and Community Psychology. 7, 2 (Apr. 2018), 61–77. DOI:https://doi.org/10.12928/jehcp.v7i2.8540.