C.E. Tuttle Co,, 1962
Buku Teks
New York Graphic Society, 1959
Buku Referensi
Imahashi, Riko, 1964-, author
International House of Japan, 2016
Buku Teks
McGraw-Hill, 1979
Buku Teks
Haekel Prashatya, author
Fakultas Psikologi Universitas Indonesia, 2015
UI - Skripsi Membership