Flint-Hamilton, Kimberly B. (1999). „Legumes in Ancient Greece and Rome: Food, Medicine, or Poison?”. Hesperia68 (3): 371–385. DOI:10.2307/148493. JSTOR148493.
Gilboa, Ayelet; Namdar, Dvory (2015). „Beginnings of South Asian Spice Trade with the Mediterranean”. Radiocarbon57 (2): 275. DOI:10.2458/azu_rc.57.18562.
Kumar, Suresh; Kamboj, Jitpal; Suman; Sharma, Sunil (June 2011). „Overview for Various Aspects of the Health Benefits of Piper Longum Linn. Fruit”. Journal of Acupuncture and Meridian Studies4 (2): 134–140. DOI:10.1016/S2005-2901(11)60020-4. PMID21704957.
Flint-Hamilton, Kimberly B. (1999). „Legumes in Ancient Greece and Rome: Food, Medicine, or Poison?”. Hesperia68 (3): 371–385. DOI:10.2307/148493. JSTOR148493.
Kumar, Suresh; Kamboj, Jitpal; Suman; Sharma, Sunil (June 2011). „Overview for Various Aspects of the Health Benefits of Piper Longum Linn. Fruit”. Journal of Acupuncture and Meridian Studies4 (2): 134–140. DOI:10.1016/S2005-2901(11)60020-4. PMID21704957.