Buck, Solon Justus
The granger movement a study of agricultural organization and its political, economic and social manifestation, 1870 - 1888
Neb. University of Nebraska Press, 1965
 Buku Teks
Fitzgerald, Walter
Africa : a social, economic and political geography of its major regions
Methuen, 1952
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Turkish revolution of 27th May 1960 with its economic and judicial aspects
Basin-Yayim ve Turizm Bakanligi Yayinlarindan, 1961
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McDiarmid, Orville John
Unskilled labor for development : its economic cost
John Hopkins University Press, 1977
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Moore, Wilbert Ellis
Industrialization and labor: social aspects of economic development
Cornell University Press , 1951
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