References

RRS, 8, 39.1
  vidyādharākhyayantrasthād ārdrakadrāvamarditāt /Context
RRS, 9, 24.1
  yantraṃ vidyādharaṃ jñeyaṃ sthālīdvitayasampuṭāt /Context
RRS, 9, 25.2
  yantraṃ vidyādharaṃ nāma tantrajñaiḥ parikīrtitam //Context
RRS, 9, 56.3
  etad vidyādharaṃ yantraṃ hiṅgulākṛṣṭihetave //Context