Kusumawati, E. et al. 2024. Importance of Happiness and Meaningfulness of Work in Increasing Work Engagement of Millennial Generation in the Digital Age: Systematic Literatur Review. Jurnal Psikologi Teori dan Terapan. 15, 01 (Feb. 2024), 16–31. DOI:https://doi.org/10.26740/jptt.v15n01.p16-31.