Allen, Edward D.
Classroom techniques : foreign languages and English as a second language
Harcourt Brace Jovanovich, [Date of publication not identified]
Buku Teks
Houseman, Jon G.
Digital zoology version 2.0 CD-ROM and student workbook
McGraw-Hill, 2003
Buku Teks
Teachinh techniques for intensive english as a second language for Indochinese refugee in galang Island Riau, Indonesia
Artikel Jurnal
Harris, David P.
Testing english as a second language
McGraw-Hill, 1969
Buku Teks
Starrett, Robert
CD-ROM fundamentals
Boyd & Fraser, 1994
Buku Teks