Tsugaeda, author
Onepeach.media, 2021
Buku Teks
Parish, James Robert, author
Mizan Learning Center, 2006
Buku Teks
Meade, Glenn, author
Pocket Books, 2011
Buku Teks
Eviati Suhaimi, author
Fakultas Ilmu Pengetahuan dan Budaya Universitas Indonesia, 1988
UI - Skripsi (Membership)
Thomas, G. A. (Graham A.), author
John Blake, 2011
Buku Teks