Jackson, M. B. (ed.) 1986. New Root Formation in Plants and Cuttings. Series Developments in plant and soil sciences nº 20. Martinus Nijhoff Publishers, a member of the Kluwer Academic Publishers Group. Da ordrecht / Boston / Lancaster. p.80-81. https://books.google.com/books?id=gAv8CAAAQBAJ&pg=PA80 19 Ağustos 2020 tarihinde Wayback Machine sitesinde arşivlendi.
Bell, A.D. 1997. Plant form: an illustrated guide to flowering plant morphology. Oxford University Press, Oxford, U.K. preview in google books 19 Ağustos 2020 tarihinde Wayback Machine sitesinde arşivlendi.
jstor.org
Agrawal, A, A., Rudgers, A, J., Botsford, W, L., Cutler, S., Gorin, B, J., Lundquist, C, J., Spitzer, W, B., & Swann, L, A. (2000). Benefits and Constraints on Plant Defense against Herbivores: Spines Influence the Legitimate and Illegitimate Flower Visitors of Yellow Star Thistle, Centaurea solstitialis L. (Asteraceae). JSTOR, 45(1), 1-5. https://www.jstor.org/stable/3672545 10 Ağustos 2021 tarihinde Wayback Machine sitesinde arşivlendi.. retrieved 2012-03-20
Jackson, M. B. (ed.) 1986. New Root Formation in Plants and Cuttings. Series Developments in plant and soil sciences nº 20. Martinus Nijhoff Publishers, a member of the Kluwer Academic Publishers Group. Da ordrecht / Boston / Lancaster. p.80-81. https://books.google.com/books?id=gAv8CAAAQBAJ&pg=PA80 19 Ağustos 2020 tarihinde Wayback Machine sitesinde arşivlendi.
Agrawal, A, A., Rudgers, A, J., Botsford, W, L., Cutler, S., Gorin, B, J., Lundquist, C, J., Spitzer, W, B., & Swann, L, A. (2000). Benefits and Constraints on Plant Defense against Herbivores: Spines Influence the Legitimate and Illegitimate Flower Visitors of Yellow Star Thistle, Centaurea solstitialis L. (Asteraceae). JSTOR, 45(1), 1-5. https://www.jstor.org/stable/3672545 10 Ağustos 2021 tarihinde Wayback Machine sitesinde arşivlendi.. retrieved 2012-03-20
Bell, A.D. 1997. Plant form: an illustrated guide to flowering plant morphology. Oxford University Press, Oxford, U.K. preview in google books 19 Ağustos 2020 tarihinde Wayback Machine sitesinde arşivlendi.
