Maizell, Robert E.
How to find chemical information : a guide for practicing chemists, teachers, and students
John Wiley & Sons, 1979
 Buku Referensi
Great books of the western world : 32 John Milton
Robert Maynard Hutchins, editor in chief
Encyclopaedia Britannica, Inc., 1952
 Buku Referensi
Maizell, Robert E.
How to find chemical information: a guide for practicing chemists, education, and students/Robert E. Maizell
John Wiley & Sons, 1987
 Buku Teks
Pirie, David B.
How to write critical essays: a guide for students of literature
Roetledge, 1985
 Buku Referensi
McLaren, John
Australian literature : an historical introduction / John McLaren
Ling Wah, 1989
 Buku Teks