Jeong-Gwang (정광), author
Yeokju Beonnyeokdae Nogeoldae Wa Nogeolonhae = 역주 번역노걸대와 노걸대언해
Singu Munhwasa, 2006
 Buku Teks
Sutanto Atmosumarto, author
Colloquial Indonesian: a complete language course
Routledge, 1994
 Buku Teks
Herni, author
Penelitian Aizuchi bahasa Jepang di dalam percakapan rekaman video
Fakultas Ilmu Pengetahuan dan Budaya Universitas Indonesia, 1996
 UI - Skripsi (Membership)
Bhatia, Tej K., author
Colloquial Urdu : the complete course for beginners
Routledge, 2000
 Buku Teks
Hachenburger, Petra
Topics, questions, keywords : a handbook for students of German / Petra Hachenburger and Paul Jackson
Routledge, 2000
 Buku Referensi