Patterson, George N.
The Uniquet frontier : border tensions in the Sino-Soviet conflict / George N. Patterson
International Studies Group, 1966.
Buku Teks
Quality and qualities: tensions in education reforms
Clementina Acedo, Don Adams, Simona Popa, editor
[Sense, ], 2012
eBooks
Cole, John W.
The Hidden frontier
Academic Press, 1974
Buku Teks
Frontier Society
Martinus Njhoff, 1971
Buku Teks
Frontier Society
Martinus Njhoff, 1971
Buku Teks