Buchori, S. et al. 2025. Assessing intrapersonal peacefulness: Validation and cultural adaptation of the Self-Perception Scale with Indonesian samples. Psikohumaniora: Jurnal Penelitian Psikologi. 10, 2 (Nov. 2025), 297–310. DOI:https://doi.org/10.21580/pjpp.v10i2.25718.