Tài liệu tham khảo WikiPedia: Prak_Hin http://5000-years.org/en/read/1121 http://www.mcu.ac.th/IBMC/html/vipassana.html https://web.archive.org/web/20190127042856/http://... https://thuvienhoasen.org/a5655/gioi-thieu-ve-thie...