Bachsan Mustafa, author
Armico, 1982
Buku Teks
Bachsan Mustafa, author
Armico, 1982
Buku Teks
Siburian, Lawrence Tp, author
Universitas Indonesia, 1983
UI - Skripsi (Membership)
Simorangkir, J.C.T., author
Gunung Agung, 1984
Buku Teks
Situmorang, Victor M., author
Bina Aksara, 1987
Buku Teks