Simorangkir, O. P., author
Bina Aksara, 1989
Buku Referensi
Muhamad Djumhana, author
Cipta Aditya Bakti, 2012
Buku Teks
Muhamad Djumhana, author
Citra Aditya Bakti, 1993
Buku Teks
Muhamad Djumhana, author
[publisher not identified], [date of publication not identified]
Buku Teks
Simorangkir, O. P., author
Rineka Cipta, 1992
Buku Referensi