Chi.C.Lee in sched. (2004) nom.nud.
^ 1.00 1.01 1.02 1.03 1.04 1.05 1.06 1.07 1.08 1.09 1.10 1.11 1.12 1.13 1.14 1.15 1.16 1.17 1.18 1.19 1.20 1.21 1.22 1.23 1.24 1.25 1.26 1.27 1.28 1.29 Akhriadi, P., Hernawati & R. Tamin 2004. A new species of Nepenthes (Nepenthaceae) from Sumatra. 互联网档案馆的存檔,存档日期2016-03-04. Reinwardtia 12(2): 141–144.
^ 2.00 2.01 2.02 2.03 2.04 2.05 2.06 2.07 2.08 2.09 2.10 2.11 2.12 2.13 Clarke, C.M. 2001. Nepenthes of Sumatra and Peninsular Malaysia. Natural History Publications (Borneo), Kota Kinabalu.
^ 4.00 4.01 4.02 4.03 4.04 4.05 4.06 4.07 4.08 4.09 4.10 4.11 4.12 4.13 4.14 4.15 4.16 4.17 4.18 4.19 4.20 4.21 4.22 4.23 4.24 4.25 4.26 4.27 4.28 4.29 4.30 McPherson, S.R. 2009. Pitcher Plants of the Old World. 2 volumes. Redfern Natural History Productions, Poole.
^ 5.0 5.1 Schlauer, J. N.d. Nepenthes rigidifolia. Carnivorous Plant Database.
^ Nepenthes rigidifolia Akhriadi, Hernawati & Tamin. International Plant Names Index (IPNI).
^ 7.00 7.01 7.02 7.03 7.04 7.05 7.06 7.07 7.08 7.09 7.10 7.11 Hernawati & P. Akhriadi 2006. A Field Guide to the Nepenthes of Sumatra. PILI-NGO Movement, Bogor.
^ 8.0 8.1 8.2 McPherson, S.R. & A. Robinson 2012. Field Guide to the Pitcher Plants of Sumatra and Java. Redfern Natural History Productions, Poole.
^ 10.0 10.1 10.2 Amazing Species: Nepenthes rigidifolia 互联网档案馆的存檔,存档日期2014-05-29.. IUCN Red List.
^ Ziemer, B. 2010. Exciting conservation news: the Rare Nepenthes Collection project! Carnivorous Plant Newsletter 39(3): 67.
^ Nepenthes rigidifolia. Ark of Life.
^ Bourke, G. 2010. A new conservation initiative: the Rare Nepenthes Collection project.PDF Captive Exotics Newsletter 1(2): 5–6.
(印尼文) Dariana 2010. Keanekaragaman Nepenthes dan pohon inang di Taman Wisata Alam Sicikeh-Cikeh Kabupaten Dairi Sumatera Utara. M.Sc. thesis, University of North Sumatra, Medan.
Heng, S.B. 2013. There's big money in pitcher plants. New Straits Times, July 13, 2013.