Walpole, Ronald E., author
Gramedia Pustaka Utama, 1992
Buku Teks
Walpole, Ronald E., author
Gramedia Pustaka Utama, 1993
Buku Teks
Walpole, Ronald E., author
Pustaka Utama, 1993
Buku Teks
Sudjana, author
Tarsito, 1992
Buku Teks
Ritonga, Abdulrahman, author
Lembaga Penerbit Fakultas Ekonomi Universitas Indonesia, 1987
Buku Teks