“Measuring Peace of Heart: The Development and Validation of Taṭmainn Al-Qulūb Scale (TQS)”. JP3I (Jurnal Pengukuran Psikologi dan Pendidikan Indonesia) 11, no. 1 (May 19, 2022): 64–83. Accessed June 25, 2026. https://journal.uinjkt.ac.id/index.php/jp3i/article/view/23661.