1. Baker, B. S., Carpenter, A. T. C., Esposito, M. S., Esposito, R. E. and Sandler, L. 1976. The genetic control of meiosis. Annual Rev. Genet. 10: 53-134.
2. Bala, S. and Gupta, R. C. 2011. In Marhold, K. (ed.). IAPT/IOPB Chromosome data 12. Taxon 60: 1784-1786.
3. Burnham, C. R. 1956. Chromosomal interchanges in Plants. Bot. Rev. 22: 419-552.
4. Dowrick, G. J. 1952. The chromosomes of Chrysanthemum, I: The species. Heredity 6: 365-375.
5. Fedorov, A. A. (ed.). 1969. Chromosome numbers of flowering plants. Izdatelstvo “Nauk,” Leningrad. Gupta, R. C. and Gill, B. S. 1983. Cytology of family Compositae of the Punjab plains India. Proceedings of the Indian National Science Academy, Part B Biological Sciences 49: 356-366.