Exploring literary trails
by John E. Brewton ... [et al.]
Laidlaw Brother, 1957
 Buku Teks
Exploring life through literature
Farrell, Edmund James ... [et al.]
Scott, Foresman, 1976
 Buku Teks
Gregg, Donald C.
College chemistry/ Donald C. Gregg
Allyn and Bacon, 1961
 Buku Teks
Carter, Ronald
The Web of words : exploring literature through language / Ronald Carter and Michael N. Long
Cambridge Cambridge University , 1987
 Buku Teks
Information sources in chemistry/Editor: R.T. Bottle, J.F.B. Rowland
Bowker, 1992
 Buku Teks