• A book on her is supposed to be forthcoming in 2010: Sarah Harding, Niguma: Lady of Illusion.
• Mkha' 'gro ma Ni ga ma: Tôh. no. 1296 (Hevajramaṇḍalavidhi, tr. by herself together with Glang Dar ma blo gros).
• She is considered the main Indian source of the Shangs pa Bka' brgyud pa lineage, whose Tibetan founder was Khyung po Rnal 'byor.
• Shaw, PE, index under Niguma.
• Nālandā, LMT, index.
• Snellgrove, Indo-Tibetan Buddhism, pp. 499, 500-501 (Niguma).
• Stearns, Luminous Lives, pp. 5, 45.
• Matthew Kapstein, The Strange Death of Pema the Demon Tamer, in M.K., ed., The Presence of Light (Chicago 2004), pp. 119-156, at p. 132.
• For a thang ka with her as the central figure, see Helmut Uhlig, Tantrische Kunst des Buddhismus, Ullstein (Berlin 1981), p. 207.
• Stearns, King, p. 151, a line drawing.
• Thuken, p. 119.

Bibliography:

• Cakrasamvarasādhana ('Khor lo sdom pa myur du sgrub pa zhes bya ba'i thabs).
  • Peking Tanjur, no. 4637. Author's name given as Niguma.
• Hevajramaṇḍalavidhi (Dpal dgyes pa rdo rje'i dkyil 'khor gyi cho ga). Tôh. no. 1296. Dergé Tanjur, vol. TA, folios 187r.5-188v.4. Tr. by the author and Glang Dar ma blo gros.
• Phyag rgya chen po ga'u ma'i rdo rje'i tshig rkang dang tshig gsal.
  • Drepung Catalog, p. 814.
  • On the Phyag chen ga'u ma teachings, see Thuken, p. 120.
• Phyag rgya chen po rtog mi rtog dang rang grol phyag rgya chen po.
  • Drepung Catalog, p. 734.
• Rtsa kha 'byed pa'i man ngag.
  • Peking Tanjur, no. 4645. Author given as Niguma.
• Rtsa rlung la sogs sgom pa.
  • Peking Tanjur, no. 4646. Author given as Niguma.
• Sems 'chi med kyi rdo rje'i tshig rkang dang 'grel pa dbang bka'.
  • Drepung Catalog, p. 1729.
• Sgyu ma lam gyi rim pa.
  • Peking Tanjur, no. 4643. Author given as Niguma. Tr. by Glan Dar ma blo gros & Ye shes kyi mkha' 'gro ma.
  • Drepung Catalog, p. 814: Sgyu ma lam rim gyi rtsa ba / sa bcad / 'grel pa rnams.
• Sgyu ma lam gyi rim pa'i 'grel pa.
  • Peking Tanjur, no. 4644. Author given as Niguma. Tr. by Glan Dar ma blo gros.
• Sgyu 'phrul dpe chung rang gnas kyi rim pa.
  • Peking Tanjur, no. 4748. Author given as Niguma.
  • But see Almogi, Materiality, pp. 245-246, where it's attributed to Vilāsavajra, and also p. 260, which says it is in the Peking Tanjur, no. 4748, but not in the Derge.
• Smon lam bka' rgya ma.
  • Drepung Catalog, p. 814.
• Svayaṃmuktimahāmudrā (Rang grol phyag rgya chen po).
  • Peking Tanjur, no. 4641. Author given as Niguma.
• Thabs lam sgom pa'i rnal 'byor.
  • Peking Tanjur, no. 4648. Author given as Niguma. I wonder if the preceding text, no. 4647, which is attributed to Ye shes Mkha' 'gro, might not be by Niguma, too.