Jelaskan Rujukan dari Nepenthes dalam bahasa melayu

Beaver, R.A. 1983. The communities living in Nepenthes pitcher plants: fauna and food webs. In: J.H. Frank & L.P. Lounibos (eds.) Phytotelmata: Plants as Hosts for Aquatic Insect Communities. Plexus Publishing, New Jersey. pp. 129–159.

Boulay, J. 1997. Les Nepenthes. Dionée 38.