Wood, James L.
Wadsworth, 1982
Buku Teks
Steven N. Durlauf, H. Peyton Young, editor
MIT Press, 2001
Buku Teks
edited by Gove Hambidge ; foreword by Teodoro Moscosco, introd. by Paul G. Hoffman
Frederick A. Praeger, 1964
Buku Teks
Sorokin, Pitirim A.
American Book, 1941
Buku Teks
Tuma, Nancy Brandon
Academic Press, 1984
Buku Teks