- Boomikumaran P. and Rathinam M. (1981) Madras Agric. J., 68 : 643-647.
- Burton, G.W. (1952). In: Proc. 6th Intern. Grassland Congress. 1 : 277-283.
- Chaudhary M.S. (1985) Thesis Abs, PGI, Punjab Rao Krishi Vidyapeeth, Akola, Maharastra.
- Chaudhary M. et al. (1988) Bangladesh J Pl Breed Genet., 1(1-2) : 62-65.
- Dewey DR, Lu. K.H. (1959) Agron. J., 51 : 515-518.
- Gill J.S. et al. (2000) Crop Improv., 27 : 88-98.
- Giriraj K, Vijaykumar S. (1974) Indian J. Genet., 31 : 27-30.
- Hanson C.H. et al. (1956) Agron. J., 48 : 268-272.
- Islam MT et al. (1999) Bangladesh J. Sci. Indust. Res., 34 : 103-107.
- Johnson H.W. et al. (1955) Agron. J., 47 : 477-483.
- Loganathan P. et al. (2000) Res. Crops., 1(1) : 34-36.
- Loganathan P. et al. (2001) Res. Crops., 2(3) : 396-397.
- Rajan R.E. et al. (2001) Madras Agric. J., 34 : 103-107.
- Raje RS, Rao SK (2000) Legume Res., 23(4) : 211-216.
- Robinson H.E. et al. (1951) Agron. J., 43 : 282-287.
- Sandhu T.S. et al. (1980) Indian J. Agric. Sci., 50 : 541-544.
- Sharma J.D., Gupta V.P. (1994) Indian J. Pulses Res., 7(2) : 174-176.
- Sharma R.N., Talukdar (1996) Ann. Agric. Res., 170(1) : 38-41.
- Sulaiman, M.S. (1976) M.Sc. (Ag) Thesis. TNAU, Coimbatore.
- Venkateswarlu O. (2001) Legume Res.; 24: 144-145.
- Yaqoob M. et al. (1997) Sarhad J. Agric., 12(2) : 129-133