Liu, Shia-Ling
Kuang Lu Publishing , 1988
Buku Teks
Sussman, Barry
New American Library, 1974
Buku Teks
Nabila Rozano
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2014
UI - Skripsi (Membership)
Summer Institute of Linguistics (Philippines) : Linguistic Society of the Philippines, 1981
Buku Teks
Fleischman, Richard
L'Arcaedizioni, 1996
Buku Teks