Vaccari, 490
Pictorial Chinese-Japanese characters: a new and fascinating method to learn ideography/ Enko Elisa Vaccari
Main Bookseller, 1950
 Buku Teks
Ono, Hideichi
Japanese grammar/ Hideichi Ono
The Hokuseido Press, 1973
 Buku Teks
Lubis, Devita Riyani
Turn-taking bahasa Jepang: koreksi ujaran orang tua kepada anak usia 2-3 tahun = Turn-taking in Japanese: parents repair utterance to children aged 2-3 years old
2018
 UI - Skripsi (Membership)
Naganuma, Naoe
Basic Japanese course / Naoe Naganuma
Naoe Naganuma, 1950
 Buku Teks
Ballantine, Joseph W.
Japanese as it is spoeken : a beginners grammar / by Joseph W. Ballantine
Stanford University, 1945
 Buku Teks