)ff 1985b: African 
satellite data. 
of the success of 
dronment, Voi: 8 
E.Kanemasu, 1984: 
:ring coefficient 
ìg of Environment, 
Comparisons among 
id four- dimensio- 
h Annual Meeting, 
■227 
A universal soil 
>n farm planning, 
.onal Congress on 
Closing ceremony