Columbia subject headings:
Siddhas--Biography--Early works to 1800.
Tantric Buddhism--India--Early works to 1800.
Harvard subject headings:
Siddhas--Biography--Early works to 1800.
Tantric Buddhism--India--Early works to 1800.
Princeton subject headings:
Siddhas--Biography--Early works to 1800.
Tantric Buddhism--India--Early works to 1800.