Kirkbride, J.H.; Wiersema, J.H.; Turland, N.J. (2006), (1753) Proposal to conserve the name Ziziphus jujuba against Z. zizyphus (Rhamnaceae), vol. 55, pp. 1049–1050, doi:10.2307/25065716(subscription required)
iapt-taxon.org
"Article 23.4". International Code of Nomenclature for algae, fungi, and plants (Melbourne Code). International Association for Plant Taxonomy. 2012. Archived from the original on 3 ஏப்ரல் 2021. Retrieved 28 January 2013. {{cite web}}: Check date values in: |archive-date= (help)
"Article 23.4". International Code of Nomenclature for algae, fungi, and plants (Melbourne Code). International Association for Plant Taxonomy. 2012. Archived from the original on 3 ஏப்ரல் 2021. Retrieved 28 January 2013. {{cite web}}: Check date values in: |archive-date= (help)