Soni Sianibar
Pustaka Agung, 1993
Buku Teks
[publisher not identified], [date of publication not identified]
Buku Teks
Risa Saraswati, author
Bukune, 2020
Buku Teks
Gevintha Karunia Maully, author
Fakultas Ilmu Pengetahuan dan Budaya Universitas Indonesia, 2014
UI - Skripsi (Membership)
Soni, S.K.
Narosa Publishing House, 2000
Buku Teks