Sakai, Tsuboi
Pantja Simpati, 1989
Buku Teks
Apsanti Djokosuyatno
Fakultas Ilmu Pengetahuan dan Budaya Universitas Indonesia, 1992
UI - Laporan Penelitian
Amitri Dinar Sari
Ruas, 2005
Buku Teks
Fredy. S
Gultom Agency, [date of publication not identified]
Buku Teks
S.M. Ardan
Balai Pustaka, 1965
Buku Teks