O'Neill, Graeme (16 December 2003). "Why apomixis is genetic gold". Australian Life Scientist. IDG Communications. Archived from the original on 2009-10-26. Retrieved 2009-10-25.
O'Neill, Graeme (16 December 2003). "Why apomixis is genetic gold". Australian Life Scientist. IDG Communications. Archived from the original on 2009-10-26. Retrieved 2009-10-25.
Fritz, Robert E.; Simms, Ellen Louise (1992). Plant resistance to herbivores and pathogens: ecology, evolution, and genetics. University of Chicago Press. p. 359. ISBN978-0-226-26554-4. OCLC1256521671.
Longman, K.A. (1993). Rooting cuttings of tropical trees. London: Commonwealth Science Council. p. 9. ISBN978-0-85092-394-0. OCLC29413829.
Reiley, H. Edward; Shry, Carroll L. (2004). Introductory horticulture (6th ed.). Albany, NY: Delmar/Thomson Learning. p. 54. ISBN978-0-7668-1567-4. OCLC43913143.
Judd, Walter S.; Campbell, Christopher S.; Kellogg, Elizabeth A.; Stevens, Peter F.; Donoghue, Michael J. (2002). Plant systematics, a phylogenetic approach (2nd ed.). Sunderland MA, USA: Sinauer Associates Inc. ISBN0-87893-403-0. OCLC50090078.
Lovett Doust, Jon; Lovett Doust, Lesley (1988). Plant reproductive ecology: patterns and strategies. Oxford University Press. p. 290. ISBN978-0-19-802192-6. OCLC472453827.