Smalley, E.B.
Microbial flora and fauna of respirable grain dust from grain elevators
NIOSH, 1986
Buku Teks
Strakosch, George R.
Vertical transportation : elevators and escalators
John Wiley & Sons, 1983
Buku Teks
Waldo, Dwight
Pengantar public administration/ Dwight Aldo
Aksara Baru, 1984
Buku Teks
Loon, Karel Glastra van
Lisa's Adem
L.J. Veen, 2002
Buku Teks
LISA plus
Bowker- Saur, 1996
Multimedia