*[http://mansfeld.ipk-gatersleben.de/pls/htmldb_pgrc/f?p=185:45:1329164412874601::NO::P7_BOTNAME,P7_DB_CHECKBOX1,P7_DB_CHECKBOX2,P7_DB_CHECKBOX4:Piper%20longum,,, Mansfeld]
*[http://www.plantnames.unimelb.edu.au/Sorting/Piper.html Multilingual Plant Name Database]
*[httphttps://www.hort.purdue.edu/newcrop/nexusCrops/Piper_longum_nexPepperLong.html NewCrop Purdue]
*[http://www.theplantlist.org/tpl1.1/search?q=Piper+longum Plant List]
*[[:en:Piper (PROSEA)|PROSEA sur Pl@ntUse]]