• In list of South Asian pundits in Bu ston's History (1989), p. 281.6.
• In list of Later Spread (Phyi dar) period pundits in Tibet contained in Zhu chen, Bstan 'gyur dkar chag, p. 161, line 14 (Gaṃ gā dha ra).
• Blue Annals, pp. 731.
• See Kosambi and Gokhale, Subhāṣitaratnakoṣa, p. lxxvi.
• Bu-ston, Yogatantra, p. 168.1 (Gaṃ gā bhar, one who obtained the siddhi of disporting in space, was a follower of pundit Samantabhadra).
• Hiranand Sastri, Nālandā, p. 87. A layperson by this name erected an image at Nālandā for the great monk Mañjuśrīdeva.
• Author of the Govindapur inscription. Sternbach, Sources, p. 471.
• The Gaṅgādhara inscription, dated to 523-524, is first inscriptional use of the term tantra according to Subrahmanyam, VBC, p. 7.

Bibliography:

• Gandhasāra.
  • One of the few known Gandhaśāstras, it is devoted to scent, perfumery and cosmetics. See Mahes Raj Pant, On Reading Two Edited Texts on the Gandhaśāstra, Ādarśa, vol. 2 (2002), pp. 21-27, and references given there (an online PDF is available).
• Vajravidāraṇāsādhana (Rdo rje rnam par 'joms pa zhes bya ba'i sgrub thabs). Tôh. no. 2913. Dergé Tanjur, vol. NU, folios 3121v.2-313r.5. Tr. by Jñānaśrī and Cog gru Rab zhi (Cog ru Rab zhi?).