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mobot.org
«Piperales». www.mobot.org. Consultado em 18 de junho de 2023
Stevens, P.F. «Piperales». Angiosperm Phylogeny Website
(em inglês) Angiosperm Phylogeny Group (2003). An update of the Angiosperm Phylogeny Group classification for the orders and families of flowering plants: APG II. Botanical Journal of the Linnean Society 141: 399-436. (Disponível online: Texto completo (HTML) | Texto completo (PDF))