Oudrey Jefany Rosemary Salu, author
Universitas Indonesia, 2014
UI - Skripsi (Membership)
Taufik Kemal Pratama, author
Universitas Indonesia, 2018
UI - Skripsi (Membership)
Elliot, Catherine, author
Longman , 2001
Buku Teks
Eko Jaya, Jakarta
Buku Teks
R. Subekti, 1914-, author
Pembimbing Masa , [date of publication not identified]
Buku Teks