Monga, Celestin, author
Lynne Rienner, 1996
Buku Teks
edited by Michael M. Horowitz and Thomas M. Painter
Westview Press, 1986
Buku Teks
edited by Hendry W. Ehrmann
Vakils, Fiffer and Simons, 1963
Buku Teks
edited by I. William Zartman and William Mark Habeeb
Westerview Press, 1993
Buku Teks
Lynne Rienner Publisher, Inc, 1986
Buku Teks