Wardhani, Nurul, Davina Rizkika Tamawulan, Ajeng Rachmah Purnama Sari, Nevya Alya Mardhiyah, Risya Khairunnisa Nuraini, Najmi Cahyani Safitri, and Daffaʼ Mulya Rahman Sulistya. “Effect of the Song ‘Diri’ by Tulus on Self-Affirmation Among University Students: An Experimental Study”. Kajian Psikologi dan Kesehatan Mental 3, no. 2 (September 5, 2025): 1–13. Accessed July 5, 2026. https://penerbitgoodwood.com/index.php/kpkm/article/view/6802.