1. Official methods of analysis;Association of Official Analytical Chemists (AOAC),1975
2. Effect of trace elements on the growth and yield of ground nuts;De;Indian J. Agron.,1976
3. Analysis of oils and fats;Guillaumin;At. Absorp. Newsl.,1966
4. Neutron activation determination of trace minerals in oleaginous plants from Zaire;Kabeya;Ann. Fac. Sci., Sect. Biol. Chim. Sci. Terre,1979