Simatupang, Tahi Bonar, 1920-
[Publisher not identified], [Date of publication not identified]
Buku Teks
Roto Soewarno
Yayasan Kembang Mas, 1986
Buku Teks SO
Adi Patrianto S.
Fakultas Ilmu Pengetahuan Budaya Universitas Indonesia, 1994
UI - Skripsi Membership
Chappy Hakim
Red and White Publishing, 2011
Buku Teks
Maryoso
1989
UI - Skripsi Membership