Oppusunggu, H.M.T., author
Pradnya Paramita, 1980
Buku Teks
Pasaribu, Amudi, author
Ghalia Indonesia, 1981
Buku Teks
Pasaribu, Amudi, author
Ghalia Indonesia , 1981
Buku Teks
Pasaribu, Amudi, author
Ghalia Indonesia, 1983
Buku Teks
Pasaribu, Amudi, author
Ghalia Indonesia, 1983
Buku Teks