TY  - BOOK
AU  - Songsak Sriboonchitta.
TI  - The private cost of using tractors versus buffaloes: a case study of farmer in Cha Choeng Sao province
SN  - X920046460
PY  - 1975///
CY  - Thammasat University, Bangkok
PB  - Faculty of Economics
KW  - Plows
KW  - Economic aspects
KW  - Tractors
KW  - Buffaloes
N1  - Moaster thesis,Thammasat University, 1975; p. 140 - p. 142
ER  -