Rudy T. Erwin, author
Aksara Baru, 1980
Buku Teks
Saragih, Djaren, author
Tarsito, 1980
Buku Teks
Harahap, Harief, author
Isabella Brothers, 1973
Buku Teks
by Departemen Kehakiman Indonesia
[publisher not identified], [date of publication not identified]
Buku Teks
Harahap, Harief, author
Pradnya Paramita, 1973
Buku Teks