K. Gathua

Laboratory methods of plant and soil analysis

Okalebo, P. Woomer, K. Gathua, 2002 .

Fractionation of organic matter by particle size

Okalebo, P. Woomer, K. Gathua, 1993 .

Laboratory methods of soil and water Analysis: A working manual

Okalebo, P. Woomer, K. Gathua, 2002 .

Laboratory methods for soil analysis. A working manual.

Kw Gathua, Paul L. Woomer, Okalebo, 1993 .

Analysis of maize–common bean intercrops in semi-arid Kenya

L. Simmonds, C. Pilbeam, K. Gathua, 1994, The Journal of Agricultural Science.