Schuurmans-Stekhoven, James. “Measuring Spirituality As Personal Belief in Supernatural Forces: Is the Character Strength Inventory-Spirituality Subscale a Brief, Reliable and Valid Measure?”. Implicit Religion 17, no. 2 (August 12, 2014): 211–222. Accessed November 24, 2024. https://journal.equinoxpub.com/IR/article/view/3346.