000 Karya Umum & Komputer

Collier's Encyclopedia 3 : Art Nouverry to Begin

Collier's Encyclopedia 2 : Amen to Artillery

Collier's Encyclopedia 1 : A to Ameland

International Encyclopedia of Statistics : A-N

International Encyclopedia of Statistics : O-Z Index

Encyclopedia Americana 1987 : Annual

Encyclopedia Americana 30 : Index

Encyclopedia Americana 29 : Wilmot Proyiso To Zygote

Encyclopedia Americana 28 : Venice To Wilmot John

Encyclopedia Americana 27 : Trance To Venial Sin