Jelpa Priantalo, author
Universitas Indonesia, 2008
UI - Skripsi (Open)
Davis, Keith, 1918-, author
Erlangga , 1985
Buku Teks
Melcher, Arlyn J
Rineka Cipta, 1990
Buku Teks
Melcher, Arlyn J
Rineka Cipta, 1990
Buku Teks
Sutarto, author
Gadjah Mada university Press, 1982
Buku Teks