Tung, Ta-Lin
Agricultural co-operation in China
Foreign Languages Press, 1959
 Buku Teks SO
Digby, Margaret
Agricultural co-operation in the commonwealth / Margaret Digby
Basil Blackwell , 1956
 Buku Teks SO
Tung, Ta-Lin
Agriculture co-operation in China / Tung Tan-lin
Foreign Language Press, 1959
 Buku Teks SO
Year book of agricultural co-operation 1950 / edited by the Horace Plumkedd Foundation
Basil Blackwell , 1950
 Buku Teks
de Lauwe, Chombart
Problems of agricultural co-operation : case study in Greece : report
Organization for economic co-operation and development , 1960
 Buku Teks SO