- Chaudhary, D.K. and Sharma, R.R. (2003). Indian J. Horti. 60(3): 251-256.
- Dewey, D.R. and Lu, K.H. (1959). Agro. J., 51:515-518.
- Johnson, H.W. et al. (1955). Agric. J. 47: 314-318.
- Kumar, B.et al. (2003). Progr. Agri. 3(1-2): 141-142.
- McPhee, K. (2003). Food, Agri. Environ. 1 (1): 64-69.
- Sharma, A.K. et al. (2003). Crop Research. Hissar. 26 (1): 135-139.
- Singh, D. and Mishra, V.K. (2002). Legume Res. 25(1): 44-46.
- Singh, J.D. and Singh, I.P. (2006). Legume Res. 29 (1): 65-67.
- Singh, S.K. et al. (1998). Crop Improv. 25(10): 139-140.
- Singh, S.P. et al. (1985).. Crop Impro. 12(10): 64-67.
- Sirohi, S.P.S. et al. (2006). Plant Archives. 6(2): 737-740.
- Togay, N. et al. (2008).African J. Biotechnol. 7(23): 4285-4287.
- Ulukan, H. et al. (2003). Pak. J. Biol. Sci ., 6(23): 1951-1955