Fitri, E., Winbaktianur, W. and Fadhilah, F. (2026) “THE RELATIONSHIP BETWEEN DIFFICULTY COEFFICIENT AND PSYCHOLOGICAL WELL-BEING AMONG EMPLOYEES OF PT. CHINA STATE CONSTRUCTION OVERSEAS DEVELOPMENT SHANGHAI”, Pacak: Journal of Naka Psychology, 1(1), pp. 23–32. Available at: https://journal.nahra.id/index.php/pacak/article/view/35 (Accessed: 6 June 2026).