Pelzer, Karl J.
Planter and peasant : colonial policy and the agrarian struggle in East Sumatra 1863-1947 / Karl J. Pelzer
Martinus Nijhoff, 1978
 Buku Teks
Pelzer, Karl J.
Toean keboen dan petani : politik kolonial dan perjuangan agraria di Sumatra Timur 1863-1947 = Planter and peasant, colonial policy and the agrarian struggle in East Sumatera 1863-1947/ Karl J. Pelzer ; alih bahasa, J. Rumbo
Pustaka Sinar Harapan, 1985
 Buku Klasik
Neimark, Edith D.
Adventures in thinking
Harcourt Brace Javanovich, 1987
 Buku Teks
Whitehead, Alfred North, 1861-1947
Adventures of ideas
The New American Library, 1933
 Buku Teks
Gallup, George
Adventures in immortality
McGraw-Hill, 1982
 Buku Teks