Norman H. Nie [and others]
McGraw-Hill, 1980
Buku Teks
Publications Bureau for the Ministry of culture: book four (A lesson 1-8),
Multimedia
EPB Publ., 1980
Buku Teks
Educational Publications Bureau for the Ministry of culture: book four (A lesson 1-8),
Multimedia
Yamagiwa, Joseph K., author
McGraw-Hill, 1942
Buku Referensi