Niles, Olive S.
Landmarks
Georgia Scott 1984
 Buku Teks SO
Walstad, William B.
Study guide to accompany economics
McGraw-Hill, 2002
 Buku Teks SO
Life: study guide to accompany
Ricki Lewis ... [and others]
McGraw-HIll, 2002
 Buku Teks SO
Instructor's guide to accompany: the Humanities
by Mary Ann Frese Witt ... [and others]
D.C. Heath, 1980
 Buku Teks SO
Carey, Steven D.
Study guide to accompany : the physical universe
McGraw-HIll, 2000
 Buku Teks SO