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.
McGraw-Hill, 1942
Buku Referensi
Hesse, Everett W.
Van Nostrand Reinhard, 1970
Buku Teks