อ้างอิง ของ Nepenthes_northiana


  1. 1 2 Phillipps, A. & A. Lamb 1996. Pitcher-Plants of Borneo. Natural History Publications (Borneo), Kota Kinabalu.
  2. ↑ Clarke, C.M. & C.C. Lee 2004. Pitcher Plants of Sarawak. Natural History Publications (Borneo), Kota Kinabalu.
  3. ↑ Turnbull, J.R. & A.T. Middleton 1988. A new species of Nepenthes from Sabah, Malaysia. Botanical Journal of the Linnean Society 96(4): 351–358.
  4. 1 2 3 4 5 6 Clarke, C.M. 1997. Nepenthes of Borneo. Natural History Publications (Borneo), Kota Kinabalu.
  5. ↑ Danser, B.H. 1928. The Nepenthaceae of the Netherlands Indies. Bulletin de Jardin de Botanique, Buitenzorg, Série III, 9(3–4): 249–438.
  6. ↑ Hansen, E. 2001. Where rocks sing, ants swim, and plants eat animals: finding members of the Nepenthes carnivorous plant family in Borneo. Discover 22(10): 60–68.