3. ข้อมูลออนไลน์
Ānanda joti Bhikku.
2006. “Caturārakkhā Bhāvanā: Four Protective Meditations”
Accessed June 6,
http://www.ancient-buddhist-texts.net.
HUNDUS, Harald and David WHARTON.
2011. “Digital Library of Lao Manuscripts” Accessed June 6,
https://www.laomanuscripts.net.