Nguồn Tràng hạt

  • Dubin, L.S. (2009). Prayer Beads. In C. Kenney (Ed.), The History of Beads: From 100,000 B.C. to the Present (Revised and Expanded Edition) (pp. 79–92). New York: Abrams Publishing.
  • Henry, G., & Marriott, S. (2008). Beads of Faith: Pathways to Meditation and Spirituality Using Rosaries, Prayer Beads and Sacred Words. Fons Vitae Publishing.
  • Untracht, O. (2008). Rosaries of India. In H. Whelchel (Ed.), Traditional Jewelry of India (pp. 69–73). New York: Thames & Hudson, Inc.
  • Wiley, E., & Shannon, M.O. (2002). A String and a Prayer: How to Make and Use Prayer Beads. Red Wheel/Weiser, LLC.
  • Winston, K. (2008). Bead One, Pray Too: A Guide to Making and Using Prayer Beads. Morehouse Publishing.