The Directory of American business in Indonesia 1995
Business Advisory Indonesia, [Date of publication not identified]
 Buku Referensi
Business loans of American commercial banks
edited by Benjamin Haggott Beckhart
Ronald Press, 1959
 Buku Teks
Publication manual of the American Psychological Association : the official guide to APA style
American Psychological Association, 2020
 Buku Teks SO
Publication manual of the American Psychological Association : the official guide to APA style
American Psychological Association, 2020
 Buku Teks
Directory of official architecture & planning 1995
Longman Grup, 1994
 Buku Referensi