Converstional drill based on the Naganuma readers, book 1
Berkeley University of California Press 1948
 Buku Teks
Vocabulary, exercises and conversational drill based on the Naganuma readers, book II-III.
University of California Press, 1945.
 Buku Teks
Eldefonso, Edward
Issues in corrections : a book of readings / Edward Eldefonso
Glencoe Press, 1974
 Buku Teks
Stanford, D
Christopher Fry
London Longmans 1954
 Buku Teks
Kosso, Peter
Reading the book of nature : an introduction to the philosophy of science
Cambridge University Press, 1992
 Buku Teks SO