edited by Jennie K. Lincoln and Elizabeht G. Ferris
Westview Press, 1984
Buku Teks
edited by Jennie K. Lincoln and Elizabeth G. Ferris
Westview Press, 1984
Buku Teks
edited by Miguel S. Wionczek
Frederick A. Praeger, 1966
Buku Teks
Bemis, Samuel Flagg, 1891-1973, author
Harcourt, Brace, 1943
Buku Teks
by Amilcar O. Herrera ... [et al.]
International Development Research Centre, 1976
Buku Teks