Salsabila AR, Asyanti S. The Role of Optimism, Gratitude, and Hope on The Psychological Well-Being of Final Year Students in Universitas Muhammadiyah Surakarta. j.psiko [Internet]. 2024 Feb. 16 [cited 2024 May 10];11(2):132-44. Available from: https://academicjournal.yarsi.ac.id/index.php/Jurnal-Online-Psikogenesis/article/view/2862