The Grolier international dictionary: volume one
Grolier Incorporated, 1990
 Buku Referensi
The Grolier international dictionary: volume two
Grolier Incorporated, 1990
 Buku Referensi
International journal of human computer studies
Academic Press. inc, 2018
 Majalah, Jurnal, Buletin
Grabar, V.E.
The History of international law in Russia, 1647-1917: a bio-biographical study / by V.E. Grabar ; translated, W.E. Butler
Clarendon Press, 1989
 Buku Teks
Kohler, Littleton, author
Contributions of four accounting pioneers
State University , 1951
 Buku Teks