Sukmawati, Fitri, Sumin Sumin, Edi Istiyono, Widhiastuti Widhiastuti, and Isyatul Mardiyati. 2022. “Muslim Spiritual Happiness Scale: The Instrument Development and Validation”. Islamic Guidance and Counseling Journal 5 (2):135-51. https://doi.org/10.25217/igcj.v5i2.2754.