- History of Buddhism in Tibet (2006)
- Buddhism in Cambodia (2010)
- Buddhism in Sri Lanka (2014)
- Buddhism in Nepal (2017)
- Buddhism in Bhutan (2020)
Articles
- "The Role of Buddhism in the Development of Tibetan Culture" (1995)
- "Buddhism in Cambodia: A Historical Overview" (2002)
- "Buddhism in Sri Lanka: A Brief History" (2007)
- "Buddhism in Nepal: A Historical Survey" (2012)
- "Buddhism in Bhutan: A Historical Perspective" (2015)
Other Writings
- Contributor to the Encyclopedia of Buddhism (2006)
- Editor of the Journal of Buddhist Studies (2010-present)
- Author of several blog posts on Buddhism and related topics