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The relationship between farm size and productivity : a case study in the Mae Klong area
Ratanakrong, Benjamas, (1981)
Productivity growth and farm machinery adoption in Thai agriculture
Nongluck, Jongsuwat, (1980)
Income as a measure of productivity : alternative comparisons of agricultural and non-agricultural productivity in Thailand
Usher, Dan, (1966)
On the Social Rate of Discount: Comment.
Usher, Dan, (1969)
The Measurement of Capital
Usher, Dan,
NationAl accounting and economic theory: The Collected Papers of Dan Usher