Vaidya 1961 Vaidya, P.L. (1961). Mahayana Sutra Samgraha Part-I. The Mithila Institute of Post-Graduate Studies and Research in Sanskrit Learning, Darbhanga, 22. september 1961.
Diamond sutra Muller, Albert Charles (1997). 金剛般若波羅蜜經 Basic Meaning: Diamond Sutra. Digital Dictionary of Buddhism (電子佛教辭典), 15. september 1997, oppdatert 23. juni 2019 (logg inn under brukernavnet «guest»).